Interacting with WhiteboxTools through the command line prompt
At its base, WhiteboxTools is a stand-alone executable command-line program. The Python scripting interface is effectively just interacting with this executable file through a series of process calls and reading the standard output. You can also interact directly with the WhiteboxTools executable file.
The following material has been extracted from the WhiteboxTools User Manual, which can be found in pdf form along with the download.
WhiteboxTools is a command-line program and can be run either by calling it from a terminal application with appropriate commands and arguments, or, more conveniently, by calling it from a script. The following commands are recognized by the WhiteboxTools library:
| Command | Description |
|---|---|
| --cd, --wd | Changes the working directory; used in conjunction with --run flag. |
| -h, --help | Prints help information. |
| -l, --license | Prints the whitebox-tools license. |
| --listtools | Lists all available tools, with tool descriptions. Keywords may also be used, --listtools slope. |
| -r, --run | Runs a tool; used in conjunction with --cd flag; -r="LidarInfo". |
| --toolbox | Prints the toolbox associated with a tool; --toolbox=Slope. |
| --toolhelp | Prints the help associated with a tool; --toolhelp="LidarInfo". |
| --toolparameters | Prints the parameters (in json form) for a specific tool; e.g. --toolparameters="FeaturePreservingDenoise". |
| -v | Verbose mode. Without this flag, tool outputs will not be printed. |
| --viewcode | Opens the source code of a tool in a web browser; --viewcode=\"LidarInfo\". |
| --version | Prints the version information. |
Generally, the Unix convention is that single-letter arguments (options) use a single hyphen (e.g. -h) while word-arguments (longer, more descriptive argument names) use double hyphens (e.g. --help). The same rule is used for passing arguments to tools as well. Use the --toolhelp argument to print information about a specific tool (e.g. --toolhelp=Clump).
Tool names can be specified either using the snake_case or CamelCase convention (e.g. lidar_info or LidarInfo).
The following is an example of calling the WhiteboxTools binary executable file directly from the command prompt:
>>./whitebox_tools --wd='/Users/johnlindsay/Documents/data/' ^
--run=DevFromMeanElev --input='DEM clipped.tif' ^
--output='DEV raster.tif' -v
Notice the quotation marks (single or double) used around
directories and filenames, and string tool arguments in general. After the
--run
flag, used to call a tool, a series of tool-specific
flags are provided to indicate the values of various input parameters. Note
that the order of these flags is unimportant. Use the
-v
flag (run in verbose mode) to force any tool to print output to the command
prompt. Please note that the whitebox_tools executable file must have permission
to be executed; on some systems, this may require setting special permissions.
Also, the above example uses the forward slash character (/), the directory
path separator used on unix based systems. On Windows, users should use the
back slash character (\) instead. Also, it is sometimes necessary to break
(^) commands across multiple lines, as above, in order to better fit with the
documents format. Actual command prompts should be contained to a single line.


--- layout: page title: "All the things" description: | Contents (archive) of all published blog posts, in chronological order. --- {% assign sorted_tags = site.tags | sort %}
Topics:


Collection
Subcontracting SFA funding, the information you need to send, what is a subcontractor and who is on the subcontracting list.
A lead provider is a college, training organisation or employer that has a direct contractual relationship with the Agency .
A subcontractor is an organisation that is engaged in a contractual and legally binding arrangement with one or more lead providers, to deliver education and training provision that the Agency funds.
Each lead provider and subcontractor must have a valid UKPRN.
A UKPRN is a UK Provider Registration Number. When an organisation registers with the UK Register of Learning Providers (UKRLP), a UKPRN is issued. Organisations can register on the UKRLP free of charge, at the following web address: http://www.ukrlp.co.uk/ .
If you have any questions about the list of declared subcontractors or would like further information, please email<EMAIL_ADDRESS>.
Provides information about subcontractors that hold contracts worth at least £100,000 in aggregate with one or more lead providers (a college, training organisation or employer that has a direct contractual relationship with the SFA).
Subcontractors are shown with their lead provider/s and the individual values of their contracts. Some subcontractors are ‘lead providers’ in their own right. The list is based on data taken from subcontractor declaration forms that ‘lead providers’ submit each academic year.
If you want to subcontract for the first time, you must obtain the SFA’s written permission before doing so.
If you want to subcontract to a second level (where a subcontractor further subcontracts to another legal entity), you must first obtain the SFA’s written permission. You must obtain permission from the SFA to subcontract to a second level every year.
The SFA funding agreements contain a clause about an annual subcontracting assurance requirement.
The clause requires lead providers that will subcontract more than a defined level of provision to obtain a report from an external auditor that provides assurance on the arrangements in place to manage and control their subcontractors. The clause requires lead providers in scope to supply us with a certificate confirming that the report provides satisfactory assurance.
Published: 20 February 2014
Updated: 14 September 2016
From: Skills Funding Agency
Part of: Further education and training


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Welcome to PSD Solutions!
Our Vission:
To provide a complete and efficient solution for our clients
Group Members:
D. D. M. M. Arachchi - System Developer
Pubudu Fernando - System Developer and Documentation Manager
Yasanka Jayawardena - System Designer
Dilip Tharuka - System Developer
Nipuna Sankalpa - CEO and System Analyst


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)
print("Slicing and saving to name", newfilename)
command = f"ffmpeg -i {vname} -ss {start} -to {stop} -c:a copy {newfilename}"
subprocess.call(command, shell=True)
return str(newfilename)
def CropVideo(
Extracts (sub)video from minute 17 to 22 and and saves it in C:\\yourusername\\rig-95\\Videos as reachingvideo1brief.avi
writer = VideoWriter(vname)
return writer.shorten(start, stop, outsuffix, outpath)
def CropVideo(
vname,


Test Results
The Test Results contains the full collection of test results generated from running test cases. You can view individual test reports of executed test cases. Test reports contain detailed information about the test case, including the success/failure result, important statistics for each ego vehicle, interesting events that happened, and a video of the ego vehicle's drive during the test case.
Test Results top#
On the left-hand side of the web user interface, clicking "Test Results" brings up the Test Results page. This page contains a table of all executed test cases which enabled test report generation.
For each test case, you can see when the report was created, the name of the test case for the report, an evaluated test case result, and a button to view the detailed report.
In order to create and view a test case report, make sure to enable the "Create Test Case report" radio button when creating a simulation.
Test Cases must have test report generation enabled when they are executed in order to be shown in Test Results. Additionally, the Analysis Sensor must be included in the ego vehicle used in the simulation. For video recording, the Video Recording sensor must also be included. Please see the sensor configurations page for the JSON.
Each test result will show the evaluated result, with either "Success", "Failed", or "In Progress". You can view each test report for additional details or messages about the reason for the evaluation.
Viewing a Test Report top#
To view a detailed test report, click the "View" button on the right for a given test result.
The top bar indicates the Test Report name, the associated simulation, and buttons to expand the starting simulation configuration details, and delete the report.
The "Iterations" section displays all iterations for this test report. For test cases run with a Python API script, one test case can contain many iterations, each with its own result, statistics, and events. The highlighted box indicates the selected iteration.
Simulation evaluation top#
The test report indicates the evaluation status, or result, of the executed simulation. The below table specifies the conditions and criteria for a simulation result. In the future, additional criteria as well as user-customizable criteria will be supported.
| Result | Cause/Criteria |
|---|---|
| SUCCESS | The test case did not result in FAILED or ERROR |
| FAILED | The test case involved at least one failure event callback |
| ERROR | The test case resulted in an error and failed to execute properly |
The "Start Time" indicates the cluster's system date and time when the test case was started/stopped. For test cases with a distributed cluster, the master node's system time is used.
The "Simulation time duration" indicates the total duration of time of the test case in simulation, excluding paused time. Note that this can be different than the "Real time duration", which measures how much total time passed in the real world during execution.
In the vehicle section, for each ego vehicle in the test case, you can view the vehicle bridge type, bridge IP and port location.
If you included the Video Recording sensor in at least one ego vehicle, you can see the file location where the recorded video of the simulation has been stored.
The following section, Sensors, exists for every ego vehicle involved in the test case. In test cases involving multiple ego vehicles, you will be able to see sensor statistics and callback event information for each ego vehicle.
Sensors: Statistics#
The Callbacks section gives notable information about the ego vehicle during the test case run.
| Metric | Description | Units |
|---|---|---|
| Distance travelled | Total distance traveled, as measured by wheel odometry | km |
| Average speed | The average speed of the ego vehicle | km/hr |
| Max speed | The maximum speed of the ego vehicle | km/hr |
| Min speed | The minimum speed of the ego vehicle | km/hr |
| Max longitudinal acceleration | Maximum instantaneous acceleration along the vehicle's longitudinal axis | m/s2 |
| Max lateral acceleration | Maximum instantaneous acceleration along the vehicle's lateral (perpendicular to longitudinal) axis | m/s2 |
| Max longitudinal jerk | Maximum instantaneous jerk along the vehicle's longitudinal axis | m/s3 |
| Max lateral jerk | Maximum instantaneous jerk along the vehicle's lateral (perpendicular to longitudinal) axis | m/s3 |
Callbacks top#
Callback events are categorized as one-time events during a test case that either affect the ego vehicle, or that the ego vehicle causes in the environment. The following types of events are supported:
- Collision involving ego (EgoCollision)
- Speed limit violation (SpeedViolation)
- Sudden braking (SuddenBrake)
- Sudden steer (SuddenSteer)
- Low simulation performance (LowFPS)
The occurrence of at least one of these events will cause a simulation to be evaluated as "Failed".
For each callback event, the returned information is reported, including the simulation time at which the event occurred.
Selecting the eye
icon will cause the visualization to seek to the time of the event in order to view the state of each sensor at that time.
EgoCollision top#
A collision involving an ego vehicle.
| Field | Description | Units |
|---|---|---|
| OtherType | Type of agent with which ego collided | NPC|Pedestrian|Obstacle |
| EgoVelocity | Velocity vector of ego at time at collision time | x, y, z in m/s |
| OtherVelocity | Velocity vector of agent/object at collision time | km/hr |
| EgoCollisionTotal | Number of ego collisions in the event |
SpeedViolation top#
A speed limit violation by an ego vehicle, based on the lane speed limit in the map annotations.
| Metric | Description | Units |
|---|---|---|
| Duration | Duration of speed limit violation event | time |
| Max speed | Maximum speed of ego vehicle during event. | m/s |
| SpeedLimit | The ego lane's annotated speed limit of the HD map | m/s |
EgoStuck top#
An ego stuck event by the ego vehicle, in which the ego travels a threshold distance and then stops moving for a threshold time
SuddenBrake top#
A sudden braking event by the ego vehicle, in which it exceeds a threshold deceleration value.
SuddenSteer top#
A sudden steering event by the ego vehicle, in which absolute magnitude of steering angle exceeds a threshold value.
LowFPS top#
A low simulation performance to indicate that results may not be accurate due to sufficiently low framerate during simulation on the cluster.


kpsereadlink - print contents of symbolic link
kpsereadlink file
If file is a symbolic link, print its contents (what it links to), and exit successfully. Exit with a failure otherwise.
On systems that do not support symbolic links, kpsereadlink will always fail.
kpsereadlink accepts the following options:
--help Print help message and exit.
--version Print version information and exit.
readlink (2)


import React, { useState } from 'react'
import { BrowserRouter as Router, Switch, Route, Redirect } from 'react-router-dom'
import { Login, Playing } from './components'
import './App.css'
import Spotify from 'spotify-web-api-js'
/**
* Handles routes to different pages based on whether the user has been authenticated and initializes the Spotify Web API instance.
*/
function App () {
const spotifyWebApi = new Spotify();
const [isAuthenticated, setAuth] = useState(false)
return (
<Router>
<Switch>
<Route exact path='/'>
{isAuthenticated ? <Redirect to='/playing' /> : <Login spotifyWebApi={spotifyWebApi} setAuth={setAuth} />}
</Route>
<Route exact path='/playing'>
<Playing spotifyWebApi={spotifyWebApi} />
</Route>
</Switch>
</Router>
)
}
export default App


Duration (hh:mm:ss)
Auto calculated from children
Auto calculated from duration of the file
Banner Colour
Subtitles
Title
Subtitle
* Provide meta details. Depending on the content type, some properties are enabled or disabled.
0 Catalog Selected


Web Audio API
- AudioBufferSource for accurate timing
- filtering with Biquad and IIR filters
- spatialization through (Stereo)Panner
and AudioListener
- has basic effects like a Delay, Convoler and WaveShaper
- can be connected to MediaStreams and MediaElements


Researcher (sekreterare), Coronakommissionen
The Swedish COVID-19 Commission, tasked by the government to evaluate how the country dealt with the pandemic. July 2021–February 2022 at 60% of full time.
Ph.D. in Economics, Stockholm School of Economics
Thesis title: “Education & Replication”. 105 ECTS coursework.
Supervisor: Prof. Tore Ellingsen. Faculty Opponent: Prof. Katrine V. Løken.
Research Intern, Sveriges Riksbank (2017)
Visiting Ph.D. Student, Stanford University (2015)
Estimating The Heterogeneity of Long-Run Returns to Swedish Higher Education
University education, political participation, and prosocial behavior with Luis Cornago Bonal and José Montalban
University education and health with Andreas Diemer
Inequality in College Applications: Evidence from Three Continents with Andrés Barrios-Fernández, Aspasia Bizopoulou, Martti Kaila, Rigissa Megalokonomou, José Montalban, Christopher Neilson, Sebastian Otero, and Xiaoyang Ye
How does access to role models impact sterotypical beliefs about STEM education? with Andrew Funck, Mona Mensmann, Ali Mohammadi, Karl Wennberg, and Thomas Åstebro
Do engineering schools foster innovation? with Daniel Metzger and Michael Böhm
The Formation of Prosocial Preferences in the Field with David Birke and Egon Tripodi
Heterogeneity in COVID-19 morbidity and mortality with Evelina Björkegren, Arizo Karimi, Torsten Persson, and Olof Östergren
Primary Supervisor •<EMAIL_ADDRESS>• +46 8 736 92 60
Dissertation Opponent •<EMAIL_ADDRESS>• +47 41 66 15 91
Co-author •<EMAIL_ADDRESS>• +1<PHONE_NUMBER>
Co-author •<EMAIL_ADDRESS>PI •<EMAIL_ADDRESS>• +46 8 16 25 86
PI •<EMAIL_ADDRESS>• +46 8 16 30 66
Math Summer Camp, Ph.D.
Preparatory math class for arriving Ph.D. students in Economics and Finance. Average score 4.5/5.
Teaching Assistant: Mathematics I, Ph.D.
Teaching Assistant for Prof. Jörgen Weibull. Introductory Mathematics for Ph.D. students in Economics and Finance. Real analysis, topology, optimization and set theory. Average score 4.5/5.
Teaching Assistant: Microeconomics, B.Sc.
Teaching Assistant for Professor Richard Friberg in introductory undergraduate Microeconomics. Not evaluated.
B.E. Journal of Economic Analysis and Policy, Economic Inquiry, Economic Journal, IFAU, International Journal for Re-Views in Empirical Economics, Journal of Behavioral and Experimental Finance, Journal of Health Economics, Journal of Public Economics, Journal of Political Economy Microeconomics, PLOS One, Quarterly Journal of Economics, Social Forces, Scandinavian Journal of Educational Research, Scandinavian Journal of Economics
Founder and Member of the Board, Musethica Sweden
Musethica is an international nonprofit organization that promotes a new approach to teaching classical music, integrating concerts into the education program of young excellent artists. The students perform in kindergartens, prisons and immigrant housing. With funding from Postkodlotteriet we launched Musethica Sweden in 2016.
Swedish (native), English (fluent), French (limited), Polish (limited)
Advanced user of PC, Mac, *nix, MS-Office, STATA, Adobe-suite. Programming in R, Python, SQL, LaTeX, Bash. Web Design in HTML, CSS and SASS.


I love to develop in the web browser with HTML5, CSS3 and a touch of JavaScript, all initally self-taught. I love coding things from scratch, but I can work with front-end frameworks like Bootstrap aswell.
On top of one year of Freelance experience, I also have a six-month, full stack coding bootcamp under my belt. There I reinforced my front end knowledge and expanded my skill set to include back end technologies such as Nodejs, Reactjs, MySQL, MongoDB and much more!


My favorite drinks
These are some of my favorite drinks
Cocktails
Here are some of my
favourite
cocktails
Martini
Margarita
Mojito
Fizz
Whiskey
Here are some of my favorite whskey's
in order
William Lawson's
Jack Daniel's
Jameson


2016 monthly gross income for top films released in 2016
Lionsgate had a couple break out ponths throughut 2016. March and November were their shining profitability months
of the year
Highest Grossing Month for the Studio: November, $37.2 Million
Lowest Grossing Month for the Studio: August, $37.1 Million
Average Grossing Month for the Studio: $37.1 Million
Highest Grossing Individual Film: The Hunger Games: Mockingja…, $444.0 Million
Average Gross For Film: $ 9.1 Million


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This chatroom contains useful information about Leukaemia
Leukaemia, also spelt leukaemia, is a group of cancers that usually begin in the bone marrow and result in high numbers of abnormal white blood cells. These white blood cells are not fully developed and are called blasts or leukaemia cells.
Hi, How did your treatment go last week?
It went well thanks! hbu?
Yes, it was not bad thanks!
How was the facilities at the hospital?
They were good, but the cafe was limited
Where would you recommend we go instead?


Glossary of tea varieties mentioned in #teatime Slack Channel
Dragon Well
Dong Ding Oolong
Four Seasons of Spring Oolong
High Mountain Oolong
Hojicha
Roasted Oolong
Kukicha
Osmanthus Oolong
Tie Guan Yin
We'd love to hear about some of your favorite tea!
Add tea to listing queue here!
Tea Name:
Keywords:
Create
Update
Delete
Status:
Tea Name & Keywords
test key
test value


Our first Alloy model is located in the upper-righthand frame. It is a short model of a file system.
Alloy models can contain comments by beginning a line with the character sequence "//".
// A file system object in the file system
There are actually three different formats for writing comments in Alloy, all reminiscent of other programming languages.
After the comment, comes our first signature declaration, "sig FSObject". It defines a set named FSObject, representing the set of all file system objects (both directories and files) in the file system.
sig FSObject { parent: lone Dir }
Following the signature declaration is its body, surrounded by curly braces. Here we can define relations that have this signature as their domain. Relations defined here behave like fields of an object in the OO paradigm.
For instance, in the FSObject signature body, we define a relation called parent which relates FSObjects to Dirs (directories). Just think of this as saying that each file system object has a parent field which is a Dir. The keyword lone simply indicates that there are 0 or 1 parent dir for each FSObject. That is, not every file system object has a parent.
You can read more about how you can read Alloy as if it were an Object Oriented language, like Java or C++. However, while the OO metaphore is useful, a deeper (but still intuitive) set theoretic understanding will eventually be required, an interested readers may like to know how Alloy really works behind the scenes.
The signatures Dir and Root are defined later in the model; the order in which we define the signatures is irrelevant. In fact, more generally, the order of paragraphs (statements) in an Alloy model does not affect its meaning. This is in the spirit of being declarative rather than imperative -- all the statements and constraints must hold, but there is no notion of an order or sequence to them.
The signatures Dir and File represent the directories and files in the file system:
// A directory in the file system sig Dir extends FSObject { contents: set FSObject } and later,
// A file in the file system sig File extends FSObject { }
Both declarations end in "extends FSObject", indicating that files and directories are subtypes of file system objects. This means two things: (1) the set of all Files is a subset of the set of all FSObjects, and (2) Files are disjoint from other subtypes of FSObject (ie it is disjoint from Dir). Anything we can do to a FSObject can also be done to a File or a Dir.
You may wish to read about other options for signatures.
It is not enough to simply define directories and files as we did above. We also need to add some basic sanity constraints to make sure they behave the way we intuitively expect. For example, the offhand parent and contents fields need not bear any particular relation to one another. Of course, when we added those fields we had a very specific constraint in mind: a directory is the parent of its contents. So, we need to write the following constraint to limit the behaviour of our model:
// A directory is the parent of its contents fact { all d: Dir, o: d.contents | o.parent = d }
In words: "Given any directory d and any (FSObject) o in d's contents, d must be the parent of o.". You may wish to look over some equivalent ways of writing this fact.
Had we omitted this fact, then we could have gotten situations like this:
There are many parent relationships among the objects, but no contents relationships!
Upon seeing such an absurd example, we would have realized that we forgot a sanity constraint or two. We will describe the process of debugging your model later; for now, let's keep looking at how to write one in the first place.
Alloy supports several quantifiers including the standard universal ("for all...") and existential ("there exists...") quantifiers.
A fact statement in Alloy puts an explicit constraint (or list of constraints) on the model. When Alloy searches for examples, it discards any which violate any fact. Thus, if the fact is trivially false, then you will simply get no examples of file systems (but won't be told that the model is inconsistent). Later we will see the 'run' command which helps make sure that you have neither overconstrained the model nor underconstrained it.
In some sense, facts are "always on"; all facts automatically always apply. Later, we will see functions and predicates , which can serve as 'optional facts', allowing you to say things like "if constraint A holds then constraint B must hold.".
Here we see the '.' operator used for the first time. Technically, the '.' operator is "relation composition" (relational join), but due to some clever definitions of Alloy syntax it also serves to access the fields of a signature.
By declaring the signatures Dir and File to be extend FSObject, we ensured that no FSObject is both a File and a Dir. However, we have not excluded the possibility of some FSObject being neither. The following fact does so:
// All file system objects are either files or directories fact { File + Dir = FSObject }
Another way to enforce that constraint would be to mark FSObject as abstract, by writing
abstract sig FSObject {...}
An abstract signature only contains atoms which are also contained in one of its extending signatures. Exception: if there are no extending signatures, then the abstract keyword is ignored.
The "+" indicates set union. Thus this fact reads "the union of all files and all directories is the same thing as set of all file system objects". In other words, "File and Dir partition FSObject"; there is no FSObject which is neither a File nor a Directory. Alloy supports other standard set operations (such as intersection and difference).
We still need to address the root directory of the file system. We do so by creating a new signature, Root, which extends Dir. Since it is marked one, there will always be exactly one instance of it. In the "appended fact" (in braces after the signature body), we constrain the root to have no parent.
// There exists a root one sig Root extends Dir { } { no parent }
Of course, we could have avoided using the one keyword and the appended fact syntax by writing appropriate additional facts to constrain the model. There are a couple of alternatives to using one and and appended fact, although they are not as concise.
We will now add our last "sanity" constraint, which makes sure that the file system is connected. After doing that, we will be ready to run the Alloy analyzer and check some assertions about the model.
// File system is connected fact { FSObject in Root.*contents }
In Alloy, in can be read as "subset of" (among other things). The operator "*" denotes reflexive transitive closure. Thus, this fact says that the set of all file system objects is a subset of everything reachable from the Root by following the contents relation zero or more times.
Note that it is important that we use the reflexive transitive closure, since Root doesn't contain itself directly or indirectly but is part of the file system.
Had we omitted this fact, we would get erroneous file systems such as this one:
So far, we have described the basic structure of a file system using sig declarations and have added some simple sanity constraints using fact statements. Now we are ready to reap the fruits of our labor by checking some properties of our model. We will write assert statements in a manner very similar to how we wrote fact statements, and then use the check command to tell Alloy to automatically search for counter examples to our assertions.
A fact forces something to be true of the model. An assert claims that something must be true due to the behaviour of the model.
// The contents path is acyclic assert acyclic { no d: Dir | d in d.^contents }
There is no directory which contains itself (directly or indirectly). That is, the containment relation among directories has no cycles. We express this constraint in Alloy using (non-reflexive) transitive closure, denoted "^".
Note that we do not want to use reflexive transitive closure (like we did before) -- if you follow the contents relation zero times you get back the same directory, making the assertion trivially false!
Next we check our assertion by searching for counterexamples (and hopefully finding none). We have to choose a finite scope for Alloy to search within, so we choose 5. That is, Alloy will examine all file systems with up to 5 FSObjects, and try to find one that violates the acyclic assertion. In general, saying "for 5", means that Alloy will examine all examples whose top level signatures (those that don't extend other signatures) have up to 5 instances. You can also say "for exactly 5" if you don't want to examine scopes smaller than 5.
check acyclic for 5
When a
In the next lesson, the Alloy walkthrough, you will get a chance to try running check statements yourself and visualizing counterexamples. For now, trust us that no counterexamples were found. In fact, it holds for any scope, but Alloy only guarantees that it holds for up to a scope of 5.
You should think for a moment about why it is that this particular assertion holds. Once you have thought about it, you can look at our intuitive explanation.
Next we write another assertion and check it, much like the last one. This time, we are checking that there is only one Root directory, and that every FSObject is in at most one directory. We use a scope of 5 for both checks.
// File system has one root assert oneRoot { one d: Dir | no d.parent } check oneRoot for 5 // Every fsobject is in at most one directory assert oneLocation { all o: FSObject | lone d: Dir | o in d.contents } check oneLocation for 5
Here we encountered the one and lone quantifiers for the first time. The one quantifier means "exactly one", and the lone quantifier means "zero or one" (you can think of it as 'less than or equal to one). You may wish to read more about these and other quantifiers.
We could have written these (or any other assertions) as facts, but then they would be redundant (if they hold) or potentially masking an important counterexample (if they don't hold). It is always better to check properties rather than redundantly forcing them to be true. If you don't understand why something does (or does not) follow from the model, then you don't understand your subject matter enough. One of the benefits of modeling (especially declarative modeling) is that it provides a relatively painless way to develop such an understanding, along with checking things you might otherwise have taken for granted.
Before proceeding to Lesson II of the File System example, let's take a look at the Alloy interface itself. We will walkthrough the basics of how to execute a command to check an Alloy model and how to interpret the results. We will do all of these in the context of the first (our current) File System model, focussing on checking the two assertions we made.


Ashley Ross
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--- layout: documentation title: ToolsType ---
| Field Name | Type | Description |
|---|---|---|
| Tool1..n | ToolInformationType |
The Tool field specifies a single Tool leveraged by this TTP item. The Type field under this field is implemented through the xsi:type controlled vocabulary extension mechanism. The default vocabulary type is AttackerToolTypeVocab-1.0 in the http://stix.mitre.org/default_vocabularies-1 namespace. This type is defined in the stix_default_vocabularies.xsd file or at the URL http://stix.mitre.org/XMLSchema/default_vocabularies/1.1.1/stix_default_vocabularies.xsd. Users may also define their own vocabulary using the type extension mechanism, specify a vocabulary name and reference using the attributes, or simply use this as a string field. |


Package org.drip.service.common
Class ArrayUtil
java.lang.Object
org.drip.service.common.ArrayUtil
public class ArrayUtil
extends java.lang.Object
ArrayUtil implements Generic Array Utility Functions used in DROP modules.
- Module = Computational Core Module
- Library = Numerical Analysis Library
- Project = Environment, Product/Definition Containers, and Scenario/State Manipulation APIs
- Package = Assorted Data Structures Support Utilities
- Author:
- Lakshmi Krishnamurthy
-
Constructor Summary
Constructors Constructor Description ArrayUtil()
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Method Summary
Modifier and Type Method Description static java.util.List<int[]>
ArrayPairList(int[] numberArray, int x)
Find all pairs of integers in the array which have difference equal to the number d.static boolean
BalancedPartition(int[] numberArray)
Given an array containing only positive integers, return if you can pick two integers from the array which cuts the array into three pieces such that the sum of elements in all pieces is equal.static int
BaseballScore(java.lang.String[] scoreEventArray)
Tom plays a game in which he throws a baseball at various blocks marked with a symbol.static int
BODMAS(java.lang.String s)
Execute a BODMAS Evaluation of the Expressionstatic boolean
CanJumpToLastIndex(int[] numberArray)
Given an array of non-negative integers, you are initially positioned at the first index of the array.static java.util.List<java.lang.Boolean>
CanMakePalindromeQueries(java.lang.String s, int[][] queries)
Given a string s, we make queries on substrings of s.static int
CircularArrayLoop(int[] numberArray)
Determine if there is a loop (or a cycle) in numberArray.static int
ClosestNextPrimeNumber(int number)
Given an integer n, return the smallest prime palindrome greater than or equal to n.static java.util.Collection<int[]>
CollapseOverlappingRanges(java.util.List<int[]> rangeList)
Collapse any Overlapping Ranges inside the Specified Liststatic boolean
ContinuousSubarraySum(int[] numberArray, int k)
Given a list of non-negative numbers and a target integer k, check if the array has a continuous sub-array of size at least 2 that sums up to a multiple of k, that is, sums up to n*k where n is also an integer.static boolean
ContinuousSubarraySumMod(int[] numberArray, int k)
Given an integer array and an integer k, return true if the array has a continuous sub-array of size at least two whose elements sum up to a multiple of k, or false otherwise.static boolean
ConversionToNondecreasing(int[] numberArray)
Given an array of integers, your task is to check if it could become non-decreasing by modifying at most one element.static int[]
CountSubArrays(int[] arr)
You are given an array a of N integers.static int
CountWaysToSeparate(java.lang.String numberStr)
Count the Number of Ways to Separate the Numberstatic int
DiscountedSale(int[] priceArray, java.util.List<java.lang.Integer> nonDiscountedItems)
A shopkeeper has a sale to complete and has arranged the items being sold in a list.static int[]
EnumerateDiagonalFlipFlop(int[][] matrix)
Given a matrix, return all elements of the matrix in diagonal flip-flop order.static java.util.List<java.util.List<java.lang.Integer>>
EnumerateDiagonalOrder(int[][] matrix)
Given a matrix, return all elements of the matrix in anti-diagonal order.static java.util.List<java.lang.String>
ExpressionOperatorPathList(int[] numberArray, int target)
Given a string that contains only digits 0-9 and a target value, return all possibilities to add binary operators (not unary) +, -, or * between the digits so they evaluate to the target value.static int[]
FindSignatureCount(int[] studentArray)
There are n students, numbered from 1 to n, each with their own year-book.static int[]
FirstAndLastPosition(int[] numberArray, int target)
Find the First and the Last Locations of the Target in the Arraystatic int
FirstMisingPositiveInteger(int[] numberArray)
Given an unsorted integer array, find the smallest missing positive integer.static java.util.Collection<java.util.List<java.lang.Integer>>
FourSum(int[] numberArray, int target)
Given an array of n integers and an integer target, are there elements a, b, c, and d in the array such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.static int
FourSumCount(int[] numberArrayA, int[] numberArrayB, int[] numberArrayC, int[] numberArrayD)
Given four lists A, B, C, D of integer values, compute how many tuples (i, j, k, l) there are such that A[i] + B[j] + C[k] + D[l] is zero.static java.util.Set<java.util.List<java.lang.Integer>>
GeneratePathCombinations(int[] numberArray, int target)
Generate the Set of the Location Paths that meet the specified Targetstatic java.util.TreeMap<java.lang.Integer,int[]>
GenerateSkyline(java.util.TreeMap<java.lang.Integer,int[]> skscraperMap)
A city skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance.static int
IdentifyDuplicate(int[] numberArray)
Given an array containing n + 1 integers where each integer is between 1 and n (inclusive), assuming there is only one duplicate number, find the duplicate one.static boolean
IncreasingTripletSubsequenceExists(int[] numberArray)
Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array.static java.util.List<int[]>
InsertIntoNonOverlappingIntervals(int[][] intervals, int[] newInterval)
Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary).static java.util.Collection<java.lang.String>
InvalidTransactions(java.lang.String[] transactionArray)
A transaction is possibly invalid if: the amount exceeds $1000, or; if it occurs within (and including) 60 minutes of another transaction with the same name in a different city.static int
InventoryProfit(int[] inventoryArray, int orderCount)
A company has several suppliers for its products.static int
IslandCounter(int[][] grid)
Count the Number of Islands in the Gridstatic boolean
JumpGameDestinationReachable(java.lang.String s, int minJump, int maxJump)
Indicate the Destination is Reachablestatic int[][]
KClosestPoints(int[][] pointGrid, int k)
Extract the K-Closest Pointsstatic int
KConcatenatedMaximumSum(int[] numberArray, int k)
Given an integer array arr and an integer k, modify the array by repeating it k times.static int
KConcatenationMaximumSum(int[] numberArray, int k)
Given an integer array numberArray and an integer k, modify the array by repeating it k times.static int
LargestRectangleInHistogram(int[] heightArray)
Given non-negative integers representing the histogram bar height where the width of each bar is 1, find the area of largest rectangle in the histogram.static int[]
LocationInSortedArray(int[] numberArray, int target)
Given an array of integers sorted in ascending order, find the starting and ending position of a given target value.static void
main(java.lang.String[] argumentArray)
Entry Pointstatic int
MaxCutArea(int h, int w, int[] horizontalCuts, int[] verticalCuts)
Given a rectangular cake with height h and width w, and two arrays of integers horizontalCuts and verticalCuts where horizontalCuts[i] is the distance from the top of the rectangular cake to the ith horizontal cut and similarly, verticalCuts[j] is the distance from the left of the rectangular cake to the jth vertical cut.static int[]
MaximumAreaUnderContainer(int[] heightArray)
Given non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai).static int
MaximumAvailableDiskSpace(int[] diskSpaceArray, int segmentLength)
Company A is performing an analysis on the computers at one of its offices.static int
MaximumNumberOfFamilies(int n, int[][] reservedSeats)
A cinema has n rows of seats, numbered from 1 to n and there are ten seats in each row, labeled from 1 to 10.static int
MaximumPointsInLine(int[][] points)
Given an array of points where points[i] = [xi, yi] represents a point on the X-Y plane, return the maximum number of points that lie on the same straight line.static int
MaximumProductSubarray(int[] numberArray)
Given an integer array, find the contiguous sub-array within an array (containing at least one number) which has the largest product.static int
MaximumSubarraySum(int[] numberArray)
Compute the Maximum Sum of any Sub-arraystatic double
MaximumSubarraySumCircular(int[] numberArray)
Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty sub-array of C.static int
MaxPathScore(int[][] matrix)
Given a two 2D matrix, find the max score of a path from the upper left cell to bottom right cell that doesn't visit any of the cells twice.static double
Median(int[] numberArray)
Evaluate the Array Medianstatic double
MedianOfSortedArrays(int[] sortedArray1, int[] sortedArray2)
There are two sorted arrays of size m and n respectively.static int[]
MergeSortedArrays(int[][] arrayOfArrays)
Merge the Array of Sorted Arrays into a Single Arraystatic int
MinimumConsumptionRate(int[] lotSizeArray, int totalTime)
Calculate the Minimum Consumption Rate of the Array of Lot Sizes within the Total Timestatic int
MinimumOverallAwkwardness(int[] heightArray)
There are n guests attending a dinner party, numbered from 1 to n.static int
MinimumSubarraySum(int[] numberArray)
Compute the Minimum Sum of any Sub-arraystatic boolean
NearbyAlmostDuplicate(int[] numberArray, int k, int t)
Given an array of integers, find out whether there are two distinct indices i and j in the array such that the absolute difference between two numbers in it is at most t and the absolute difference between i and j is at most k.static int[]
NextGreaterElement(int[] numberArray)
Given a circular array (the next element of the last element is the first element of the array), print the Next Greater Number for every element.static java.util.List<int[]>
OptimizeMemoryUsage(int[] foregroundTasks, int[] backgroundTasks, int k)
Give a computer with total k memory space, and an array of foreground tasks and background tasks the computer needs to do.static int[]
PancakeFlipSort(int[] numberArray)
Implement the Pancake Flip Sortstatic int
PartitionArrayMinimizeSum(int[] numberArray)
You are given an integer array of 2 * n integers.static int
PopulationInfection(int[][] infectionMatrix)
Given a 2D grid, each cell is either a zombie or a human.static int[]
ProductOfArrayExceptSelf(int[] numberArray)
Compute the Array of Product of Array Except Selfstatic int[]
QueueReconstructionByHeight(int[][] heightOrderArray)
A Random list of people standing in a queue.static int
RainWaterCatchmentArea(int[] segmentHeightArray)
Implement the Rain-water Catchment Area given the array of Heightsstatic int[][]
RandomMinesInGrid(int m, int n, int k)
Given a m-by-n grid, generate k mines on this grid randomly.static int
ReachTargetMinimumJumps(int[] forbiddenLocationArray, int a, int b, int target)
A certain bug's home is on the x-axis at position x.static boolean
ReverseMatchPossible(int[] a, int[] b)
Check if Reverse match is Possiblestatic boolean
SearchRotatedArray(int[] numberArray, int target)
Search for the Target in a Rotated Arraystatic int
SearchRotatedArray2(int[] numberArray, int target)
Search for the Target in a Rotated Arraystatic boolean
SetMatrixZeroes(int[][] matrix)
Given a m x n matrix, if an element is 0, set its entire row and column to 0.static int
ShortestSubarrayAtLeastSum(int[] numberArray, int sum)
Given an integer array and an integer, return the length of the shortest non-empty subarray with a sum of at least sum.static java.util.TreeMap<java.lang.Integer,java.lang.Integer>
SliceOverlappingRanges(java.util.List<int[]> rangeList)
Generate a Counter Map of the Overlapping Slice Rangesstatic int[]
SlidingWindowMaximum(int[] numberArray, int k)
Build the Array of Maximum Sliding Window of Size kstatic void
SortColor(int[] numberArray)
Given an array with n objects colored red, white or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white and blue.static int
SortedMatrixKthElement(int[][] matrix, int k)
Given a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix.static int
SparseMatrixDotProduct(int[][] matrix)
Compute the Dot Product of the Sparse Matrixstatic java.util.Map<java.lang.String,java.lang.Integer>
SparseMatrixRepresentation(int[][] matrix)
Construct a Sparse Matrix Representationstatic java.util.List<java.lang.Integer>
SpiralMatrixOrder(int[][] matrix)
Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.static boolean
SplitIntoSameAverage(double[] numberArray)
Check if the Array can be split so that the Two Sides add to the samestatic int
StrategicBalloonBurstSum(int[] balloonCoinArray)
Given an array of balloons, each balloon is painted with a number on it represented by array.static int
SubarrayMinimum(int[] numberArray)
Given an array of integers, find the sum of min(B), where B ranges over every (contiguous) sub-array.static java.util.List<java.lang.String>
TargetApproachPathList(int[] numberArray, int target)
Given a list of integers and a target.static int
TargetSum(int[] numberArray, int target)
Count the Number of Ways to reach the Targetstatic java.util.Map<java.lang.String,int[]>
ThreeSum(int[] numberArray)
Given an array of n integers, find all unique triplets in the array which gives the sum of zero.static int
UniqueElementsInSortedArray(int[] numberArray)
Count the Unique Elements in the Sorted Arraystatic int
UniquePathsWithObstacles(int[][] obstacleGrid)
A robot is located at the top-left corner of a m x n grid.static boolean
WiggleSort(int[] numberArray)
Given an unsorted array numberArray, reorder it such that numberArray[0] le numberArray[1] ge numberArray[2] le numberArray[3]....static boolean
WiggleSort2(int[] numberArray)
Implement the Wiggle Sort Version 2static boolean
WordExistsInBoard(char[][] board, java.lang.String word)
Given a 2D board and a word, find if the word exists in the grid.Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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ArrayUtil
public ArrayUtil()
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Method Details
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SearchRotatedArray
public static final boolean SearchRotatedArray(int[] numberArray, int target)Search for the Target in a Rotated Array- Parameters:
numberArray
- The Rotated Number Arraytarget
- The Target- Returns:
- TRUE - The Number exists
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SearchRotatedArray2
public static final int SearchRotatedArray2(int[] numberArray, int target)Search for the Target in a Rotated Array- Parameters:
numberArray
- The Rotated Number Arraytarget
- The Target- Returns:
- TRUE - The Rotated Index
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ThreeSum
public static final java.util.Map<java.lang.String,int[]> ThreeSum(int[] numberArray)Given an array of n integers, find all unique triplets in the array which gives the sum of zero.- Parameters:
numberArray
- The Number Array- Returns:
- The List of Unique Triplets
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CircularArrayLoop
public static final int CircularArrayLoop(int[] numberArray)Determine if there is a loop (or a cycle) in numberArray. A cycle must start and end at the same index and the cycle's length gt 1. Furthermore, movements in a cycle must all follow a single direction. In other words, a cycle must not consist of both forward and backward movements.- Parameters:
numberArray
- The Number Array- Returns:
- TRUE - The Circle has a Loop
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MaxCutArea
public static final int MaxCutArea(int h, int w, int[] horizontalCuts, int[] verticalCuts)Given a rectangular cake with height h and width w, and two arrays of integers horizontalCuts and verticalCuts where horizontalCuts[i] is the distance from the top of the rectangular cake to the ith horizontal cut and similarly, verticalCuts[j] is the distance from the left of the rectangular cake to the jth vertical cut. Return the maximum area of a piece of cake after you cut at each horizontal and vertical position provided in the arrays horizontalCuts and verticalCuts.- Parameters:
h
- Cake Heightw
- Cake WidthhorizontalCuts
- Array of Horizontal CutsverticalCuts
- Array of Vertical Cuts- Returns:
- Maximum area of a piece of cake
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InvalidTransactions
public static final java.util.Collection<java.lang.String> InvalidTransactions(java.lang.String[] transactionArray)A transaction is possibly invalid if: the amount exceeds $1000, or; if it occurs within (and including) 60 minutes of another transaction with the same name in a different city. Each transaction string transactions[i] consists of comma separated values representing the name, time (in minutes), amount, and city of the transaction. Given a list of transactions, return a list of transactions that are possibly invalid. You may return the answer in any order.- Parameters:
transactionArray
- Array of Transactions- Returns:
- Array of Invalid Transactions
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MaximumProductSubarray
public static final int MaximumProductSubarray(int[] numberArray)Given an integer array, find the contiguous sub-array within an array (containing at least one number) which has the largest product.- Parameters:
numberArray
- The Number Array- Returns:
- The Maximum Product
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SubarrayMinimum
public static final int SubarrayMinimum(int[] numberArray)Given an array of integers, find the sum of min(B), where B ranges over every (contiguous) sub-array.- Parameters:
numberArray
- Array if Integers- Returns:
- Sum of min(B)
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FourSum
public static final java.util.Collection<java.util.List<java.lang.Integer>> FourSum(int[] numberArray, int target)Given an array of n integers and an integer target, are there elements a, b, c, and d in the array such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.- Parameters:
numberArray
- The Number Arraytarget
- Target- Returns:
- Collection of Unique Quadruplets
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MaximumSubarraySum
public static final int MaximumSubarraySum(int[] numberArray)Compute the Maximum Sum of any Sub-array- Parameters:
numberArray
- The Number Array- Returns:
- The Maximum Sum of any Sub-array
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MinimumSubarraySum
public static final int MinimumSubarraySum(int[] numberArray)Compute the Minimum Sum of any Sub-array- Parameters:
numberArray
- The Number Array- Returns:
- The Minimum Sum of any Sub-array
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MaximumSubarraySumCircular
public static final double MaximumSubarraySumCircular(int[] numberArray)Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty sub-array of C. Here, a circular array means the end of the array connects to the beginning of the array. (Formally, C[i] = A[i] when 0 lte i lt A.length, and C[i+A.length] = C[i] when i gte 0.) Also, a sub-array may only include each element of the fixed buffer A at most once. (Formally, for a sub-array C[i], C[i+1], ..., C[j], there does not exist i lte k1, k2 gte j with k1 % A.length = k2 % A.length.)- Parameters:
numberArray
- The Number Array- Returns:
- The Maximum Sum of any Circular Sub-array
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SpiralMatrixOrder
public static final java.util.List<java.lang.Integer> SpiralMatrixOrder(int[][] matrix)Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.- Parameters:
matrix
- m x n Matrix- Returns:
- Elements of the matrix in spiral order.
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UniquePathsWithObstacles
public static final int UniquePathsWithObstacles(int[][] obstacleGrid)A robot is located at the top-left corner of a m x n grid. The robot can only move either down or right at any point in time. The robot is trying to reach the bottom-right corner of the grid. Now consider if some obstacles are added to the grids. How many unique paths would there be?- Parameters:
obstacleGrid
- The Obstacle Grid- Returns:
- Count of the Unique Paths
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CanMakePalindromeQueries
public static final java.util.List<java.lang.Boolean> CanMakePalindromeQueries(java.lang.String s, int[][] queries)Given a string s, we make queries on substrings of s. For each query queries[i] = [left, right, k], we may rearrange the substring s[left], ..., s[right], and then choose up to k of them to replace with any lower-case English letter. If the substring is possible to be a palindrome string after the operations above, the result of the query is true. Otherwise, the result is false. Return an array answer[], where answer[i] is the result of the i-th query queries[i]. Note that: Each letter is counted individually for replacement so if for example s[left..right] = "aaa", and k = 2, we can only replace two of the letters. (Also, note that the initial string s is never modified by any query.)- Parameters:
s
- Input Stringqueries
- Array of Queries- Returns:
- List of Query Results
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ArrayPairList
public static final java.util.List<int[]> ArrayPairList(int[] numberArray, int x)Find all pairs of integers in the array which have difference equal to the number d.- Parameters:
numberArray
- The Number Arrayx
- The Difference- Returns:
- All pairs of integers in the array which have difference equal to the number d.
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MaximumNumberOfFamilies
public static final int MaximumNumberOfFamilies(int n, int[][] reservedSeats)A cinema has n rows of seats, numbered from 1 to n and there are ten seats in each row, labeled from 1 to 10. Given the array reservedSeats containing the numbers of seats already reserved, for example, reservedSeats[i] = [3,8] means the seat located in row 3 and labeled with 8 is already reserved. Return the maximum number of four-person groups you can assign on the cinema seats. A four-person group occupies four adjacent seats in one single row. Seats across an aisle (such as [3,3] and [3,4]) are not considered to be adjacent, but there is an exceptional case on which an aisle split a four-person group, in that case, the aisle split a four-person group in the middle, which means to have two people on each side.- Parameters:
n
- Number of RowsreservedSeats
- Locations of Reserved Seats- Returns:
- Maximum number of four-person groups.
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CanJumpToLastIndex
public static final boolean CanJumpToLastIndex(int[] numberArray)Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index.- Parameters:
numberArray
- Array of non-negative Integers- Returns:
- TRUE - The Last Index can be reached.
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WordExistsInBoard
public static final boolean WordExistsInBoard(char[][] board, java.lang.String word)Given a 2D board and a word, find if the word exists in the grid. The word can be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The same letter cell may not be used more than once.- Parameters:
board
- The Boardword
- The Word- Returns:
- TRUE - The Word exists on the board
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ReverseMatchPossible
public static final boolean ReverseMatchPossible(int[] a, int[] b)Check if Reverse match is Possible- Parameters:
a
- Array Ab
- Array B- Returns:
- TRUE - Reverse Match is Possible
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FindSignatureCount
public static final int[] FindSignatureCount(int[] studentArray)There are n students, numbered from 1 to n, each with their own year-book. They would like to pass their year- books around and get them signed by other students. You are given a list of n integers arr[1..n], which is guaranteed to be a permutation of 1..n (in other words, it includes the integers from 1 to n exactly once each, in some order). The meaning of this list is described below. Initially, each student is holding their own year-book. The students will then repeat the following two steps each minute: Each student i will first sign the year-book that they're currently holding (which may either belong to themselves or to another student), and then they'll pass it to student arr[i]. It is possible that arr[i] = i for any given i, in which case student i will pass their year-book back to themselves. Once a student has received their own year-book back, they will hold on to it and no longer participate in the passing process. It is guaranteed that, for any possible valid input, each student will eventually receive their own year-book back and will never end up holding more than one year-book at a time. You must compute a list of n integers output, whose ith element is equal to the number of signatures that will be present in student i's year-book once they receive it back.- Parameters:
studentArray
- The Starting Array- Returns:
- The Signature Count Array
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CountSubArrays
public static final int[] CountSubArrays(int[] arr)You are given an array a of N integers. For each index i, you are required to determine the number of contiguous sub-arrays that fulfills the following conditions: The value at index i must be the maximum element in the contiguous subarrays, and: These contiguous subarrays must either start from or end on index i.- Parameters:
arr
- Input Array- Returns:
- Number of Contiguous Sub-arrays
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KClosestPoints
public static final int[][] KClosestPoints(int[][] pointGrid, int k)Extract the K-Closest Points- Parameters:
pointGrid
- Grid of Pointsk
- K- Returns:
- K-Closest Points
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MergeSortedArrays
public static final int[] MergeSortedArrays(int[][] arrayOfArrays)Merge the Array of Sorted Arrays into a Single Array- Parameters:
arrayOfArrays
- Array of Sorted Arrays- Returns:
- Resulting Single Array
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NextGreaterElement
public static final int[] NextGreaterElement(int[] numberArray)Given a circular array (the next element of the last element is the first element of the array), print the Next Greater Number for every element. The Next Greater Number of a number x is the first greater number to its traversing-order next in the array, which means you could search circularly to find its next greater number. If it doesn't exist, output -1 for this number.- Parameters:
numberArray
- Input Number Array- Returns:
- Array of Next Greater Numbers
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NearbyAlmostDuplicate
public static final boolean NearbyAlmostDuplicate(int[] numberArray, int k, int t)Given an array of integers, find out whether there are two distinct indices i and j in the array such that the absolute difference between two numbers in it is at most t and the absolute difference between i and j is at most k.- Parameters:
numberArray
- The Number Arrayk
- Index Difference Boundt
- Value Difference Bound- Returns:
- TRUE - There is a near-by Duplicate
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ContinuousSubarraySum
public static final boolean ContinuousSubarraySum(int[] numberArray, int k)Given a list of non-negative numbers and a target integer k, check if the array has a continuous sub-array of size at least 2 that sums up to a multiple of k, that is, sums up to n*k where n is also an integer.- Parameters:
numberArray
- The Number Arrayk
- Target Sum k- Returns:
- TRUE - The array has a continuous sub-array of size at least 2 that sums up to a multiple of k
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KConcatenatedMaximumSum
public static final int KConcatenatedMaximumSum(int[] numberArray, int k)Given an integer array arr and an integer k, modify the array by repeating it k times. For example, if the array is [1, 2] and k = 3 then the modified array will be [1, 2, 1, 2, 1, 2]. Return the maximum sub-array sum in the modified array. Note that the length of the sub-array can be 0 and its sum in that case is 0.- Parameters:
numberArray
- The Number Arrayk
- The Repeat Count- Returns:
- Maximum sub-array sum in the modified array
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WiggleSort
public static final boolean WiggleSort(int[] numberArray)Given an unsorted array numberArray, reorder it such that numberArray[0] le numberArray[1] ge numberArray[2] le numberArray[3]....- Parameters:
numberArray
- Number Array- Returns:
- TRUE - The Number Array is Wiggle Sorted
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TargetSum
public static final int TargetSum(int[] numberArray, int target)Count the Number of Ways to reach the Target- Parameters:
numberArray
- The Input Arraytarget
- The Target- Returns:
- The Number of Ways to reach the Target
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UniqueElementsInSortedArray
public static final int UniqueElementsInSortedArray(int[] numberArray)Count the Unique Elements in the Sorted Array- Parameters:
numberArray
- The Number Array- Returns:
- Count of the Unique Elements in the Sorted Array
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GeneratePathCombinations
public static final java.util.Set<java.util.List<java.lang.Integer>> GeneratePathCombinations(int[] numberArray, int target)Generate the Set of the Location Paths that meet the specified Target- Parameters:
numberArray
- Input Arraytarget
- The Target- Returns:
- The Set of the Location Paths that meet the specified Target
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FirstAndLastPosition
public static final int[] FirstAndLastPosition(int[] numberArray, int target)Find the First and the Last Locations of the Target in the Array- Parameters:
numberArray
- The Number Arraytarget
- The Target- Returns:
- The First and the Last Locations of the Target in the Array
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ProductOfArrayExceptSelf
public static final int[] ProductOfArrayExceptSelf(int[] numberArray)Compute the Array of Product of Array Except Self- Parameters:
numberArray
- The Input Array- Returns:
- The Array of Product of Array Except Self
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IslandCounter
public static final int IslandCounter(int[][] grid)Count the Number of Islands in the Grid- Parameters:
grid
- The Grid- Returns:
- The Number of Islands in the Grid
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PancakeFlipSort
public static final int[] PancakeFlipSort(int[] numberArray)Implement the Pancake Flip Sort- Parameters:
numberArray
- The Input Array- Returns:
- Array of Sorted Pancake Flips
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MinimumConsumptionRate
public static final int MinimumConsumptionRate(int[] lotSizeArray, int totalTime)Calculate the Minimum Consumption Rate of the Array of Lot Sizes within the Total Time- Parameters:
lotSizeArray
- Array of Lot SizestotalTime
- The Total Time- Returns:
- The Minimum Consumption Rate
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CollapseOverlappingRanges
public static final java.util.Collection<int[]> CollapseOverlappingRanges(java.util.List<int[]> rangeList)Collapse any Overlapping Ranges inside the Specified List- Parameters:
rangeList
- Ranges in the List- Returns:
- Collection of the Collapsed Ranges
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SliceOverlappingRanges
public static final java.util.TreeMap<java.lang.Integer,java.lang.Integer> SliceOverlappingRanges(java.util.List<int[]> rangeList)Generate a Counter Map of the Overlapping Slice Ranges- Parameters:
rangeList
- The Range List- Returns:
- Counter Map of the Overlapping Slice Ranges
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MinimumOverallAwkwardness
public static final int MinimumOverallAwkwardness(int[] heightArray)There are n guests attending a dinner party, numbered from 1 to n. The ith guest has a height of heightArray[i] inches. The guests will sit down at a circular table which has n seats, numbered from 1 to n in clockwise order around the table. As the host, you will choose how to arrange the guests, one per seat. Note that there are n! possible permutations of seat assignments. Once the guests have sat down, the awkwardness between a pair of guests sitting in adjacent seats is defined as the absolute difference between their two heights. Note that, because the table is circular, seats 1 and n are considered to be adjacent to one another, and that there are therefore n pairs of adjacent guests. The overall awkwardness of the seating arrangement is then defined as the maximum awkwardness of any pair of adjacent guests. Determine the minimum possible overall awkwardness of any seating arrangement.- Parameters:
heightArray
- The Height Array- Returns:
- The Maximum Awkwardness of the Arrangement
-
TargetApproachPathList
public static final java.util.List<java.lang.String> TargetApproachPathList(int[] numberArray, int target)Given a list of integers and a target. There are 2 symbols + and -. For each integer, choose one from + and - as its new symbol. Find out the ways to assign symbols to make sum of integers equal to target.- Parameters:
numberArray
- The Number Arraytarget
- The Sum Target- Returns:
- List of the Target Approach Paths
-
BODMAS
public static final int BODMAS(java.lang.String s) throws java.lang.ExceptionExecute a BODMAS Evaluation of the Expression- Parameters:
s
- The Expression String- Returns:
- result of the BODMAS Evaluation
- Throws:
java.lang.Exception
- Thrown if the Inputs are Invalid
-
ExpressionOperatorPathList
public static final java.util.List<java.lang.String> ExpressionOperatorPathList(int[] numberArray, int target)Given a string that contains only digits 0-9 and a target value, return all possibilities to add binary operators (not unary) +, -, or * between the digits so they evaluate to the target value.- Parameters:
numberArray
- The Number Arraytarget
- The Target- Returns:
- List of the Expression Possibilities
-
InsertIntoNonOverlappingIntervals
public static final java.util.List<int[]> InsertIntoNonOverlappingIntervals(int[][] intervals, int[] newInterval)Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). Assume that the intervals were initially sorted according to their start times.- Parameters:
intervals
- Array of the Sorted IntervalsnewInterval
- The New Interval- Returns:
- List of the Merged Intervals
-
SortColor
public static final void SortColor(int[] numberArray)Given an array with n objects colored red, white or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white and blue. Here, use the integers 0, 1, and 2 to represent the color red, white, and blue respectively. Note: You are not suppose to use the library's sort function for this problem.- Parameters:
numberArray
- The Number Array
-
SparseMatrixRepresentation
public static final java.util.Map<java.lang.String,java.lang.Integer> SparseMatrixRepresentation(int[][] matrix)Construct a Sparse Matrix Representation- Parameters:
matrix
- The Sparse Matrix- Returns:
- Th Sparse Matrix Representation
-
SparseMatrixDotProduct
public static final int SparseMatrixDotProduct(int[][] matrix)Compute the Dot Product of the Sparse Matrix- Parameters:
matrix
- The Sparse Matrix- Returns:
- Dot Product of the Sparse Matrix
-
LocationInSortedArray
public static final int[] LocationInSortedArray(int[] numberArray, int target)Given an array of integers sorted in ascending order, find the starting and ending position of a given target value. The algorithm's runtime complexity must be in the order of O(log n). If the target is not found in the array, return [-1, -1].- Parameters:
numberArray
- The Sorted Number Arraytarget
- The Target Number- Returns:
- The starting and ending positions.
-
RandomMinesInGrid
public static final int[][] RandomMinesInGrid(int m, int n, int k)Given a m-by-n grid, generate k mines on this grid randomly. Each cell should have equal probability of k / (m * n) of being chosen.- Parameters:
m
- mn
- nk
- k- Returns:
- k Random Mines on this Grid
-
EnumerateDiagonalFlipFlop
public static final int[] EnumerateDiagonalFlipFlop(int[][] matrix)Given a matrix, return all elements of the matrix in diagonal flip-flop order.- Parameters:
matrix
- The Matrix- Returns:
- Elements of the matrix in diagonal flip-flop order
-
EnumerateDiagonalOrder
public static final java.util.List<java.util.List<java.lang.Integer>> EnumerateDiagonalOrder(int[][] matrix)Given a matrix, return all elements of the matrix in anti-diagonal order.- Parameters:
matrix
- The Matrix- Returns:
- Elements of the matrix in anti-diagonal order.
-
SlidingWindowMaximum
public static final int[] SlidingWindowMaximum(int[] numberArray, int k)Build the Array of Maximum Sliding Window of Size k- Parameters:
numberArray
- The Number Arrayk
- Size- Returns:
- The Array of Maximum Sliding Window of Size k
-
SetMatrixZeroes
public static final boolean SetMatrixZeroes(int[][] matrix)Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place.- Parameters:
matrix
- The Given Matrix- Returns:
- TRUE - The Altered Matrix
-
IncreasingTripletSubsequenceExists
public static final boolean IncreasingTripletSubsequenceExists(int[] numberArray)Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Formally the function should: Return true if there exists i, j, k such that arr[i] lt arr[j] lt arr[k] given 0 le i lt j lt le â‰¤ n-1 else return false. Note: Your algorithm should run in O(n) time complexity and O(1) space complexity.- Parameters:
numberArray
- The Number Array- Returns:
- TRUE - Increasing Triplet Subsequence Exists
-
FourSumCount
public static final int FourSumCount(int[] numberArrayA, int[] numberArrayB, int[] numberArrayC, int[] numberArrayD)Given four lists A, B, C, D of integer values, compute how many tuples (i, j, k, l) there are such that A[i] + B[j] + C[k] + D[l] is zero.- Parameters:
numberArrayA
- Number Array AnumberArrayB
- Number Array BnumberArrayC
- Number Array CnumberArrayD
- Number Array D- Returns:
- Count of the Zero 4 Sums
-
MaximumAreaUnderContainer
public static final int[] MaximumAreaUnderContainer(int[] heightArray)Given non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two end-points of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.- Parameters:
heightArray
- Array of Heights- Returns:
- The Line Locations and the Maximum Container Area
-
FirstMisingPositiveInteger
public static final int FirstMisingPositiveInteger(int[] numberArray)Given an unsorted integer array, find the smallest missing positive integer.- Parameters:
numberArray
- Unsorted Number Array- Returns:
- Smallest Missing Positive Integer
-
IdentifyDuplicate
public static final int IdentifyDuplicate(int[] numberArray)Given an array containing n + 1 integers where each integer is between 1 and n (inclusive), assuming there is only one duplicate number, find the duplicate one.- Parameters:
numberArray
- The Number Array- Returns:
- The Duplicate Number
-
RainWaterCatchmentArea
public static final int RainWaterCatchmentArea(int[] segmentHeightArray)Implement the Rain-water Catchment Area given the array of Heights- Parameters:
segmentHeightArray
- Array of Heights- Returns:
- The Rain-water Catchment Area
-
QueueReconstructionByHeight
public static final int[] QueueReconstructionByHeight(int[][] heightOrderArray)A Random list of people standing in a queue. Each person is described by a pair of integers (h, k), where h is the height of the person and k is the number of people in front of this person who have a height greater than or equal to h. Reconstruct the queue.- Parameters:
heightOrderArray
- The Height+Order Tuple Array- Returns:
- The Queue Array
-
MedianOfSortedArrays
public static final double MedianOfSortedArrays(int[] sortedArray1, int[] sortedArray2)There are two sorted arrays of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). Assume arrays cannot be both empty.- Parameters:
sortedArray1
- Sorted Array #1sortedArray2
- Sorted Array #2- Returns:
- The Overall Median
-
SortedMatrixKthElement
public static final int SortedMatrixKthElement(int[][] matrix, int k)Given a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix. Note that it is the kth smallest element in the sorted order, not the kth distinct element.- Parameters:
matrix
- The Matrixk
- kth Element- Returns:
- kth Smallest Element
-
LargestRectangleInHistogram
public static final int LargestRectangleInHistogram(int[] heightArray)Given non-negative integers representing the histogram bar height where the width of each bar is 1, find the area of largest rectangle in the histogram.- Parameters:
heightArray
- The Bar Array- Returns:
- Area of the Largest Rectangle
-
GenerateSkyline
public static final java.util.TreeMap<java.lang.Integer,int[]> GenerateSkyline(java.util.TreeMap<java.lang.Integer,int[]> skscraperMap)A city skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Given the locations and height of all the buildings as shown on a cityscape photo, output the skyline formed by these buildings collectively.- Parameters:
skscraperMap
- Cityscape represented as a Map of Skyscapers- Returns:
- The Skyline Map
-
StrategicBalloonBurstSum
public static final int StrategicBalloonBurstSum(int[] balloonCoinArray)Given an array of balloons, each balloon is painted with a number on it represented by array. You are asked to burst all the balloons. If the you burst balloon i you will get nums[left] * nums[i] * nums[right] coins. Here left and right are adjacent indices of i. After the burst, the left and right then becomes adjacent. Find the maximum coins you can collect by bursting the balloons wisely.- Parameters:
balloonCoinArray
- Balloon Coin Array- Returns:
- Wise Balloon Burst Sum
-
Median
public static final double Median(int[] numberArray)Evaluate the Array Median- Parameters:
numberArray
- The Number Array- Returns:
- The Array Median
-
WiggleSort2
public static final boolean WiggleSort2(int[] numberArray)Implement the Wiggle Sort Version 2- Parameters:
numberArray
- The Number Array- Returns:
- TRUE - The Sort Implementation done
-
BaseballScore
public static final int BaseballScore(java.lang.String[] scoreEventArray)Tom plays a game in which he throws a baseball at various blocks marked with a symbol. Each block comes with a symbol which can be an integer, â€˜Xâ€™, â€˜+â€™, or â€˜Zâ€™. Given a list of strings represent blocks, return the final score.- Parameters:
scoreEventArray
- Array of the Score/Event Strings- Returns:
- The Baseball Score
-
InventoryProfit
public static final int InventoryProfit(int[] inventoryArray, int orderCount)A company has several suppliers for its products. For each of the products, the stock is represented by a list of a number of items for each supplier. As items are purchased, the supplier raises the price by 1 per item purchased. Let's assume Amazon's profit on any single item is the same as the number of items the supplier has left. For example, if a supplier has 4 items, company's profit on the first item sold is 4, then 3, then 2 and the profit of the last one is 1. Given a list where each value in the list is the number of the item at a given supplier and also given the number of items to be ordered, write an algorithm to find the highest profit that can be generated for the given product.- Parameters:
inventoryArray
- The Number of SuppliersorderCount
- The Order Count- Returns:
- The Inventory Profit
-
MaximumAvailableDiskSpace
public static final int MaximumAvailableDiskSpace(int[] diskSpaceArray, int segmentLength)Company A is performing an analysis on the computers at one of its offices. The computers are spaced along a single row. The analysis is performed in the following way: Choose a contiguous segment of a certain number of computers, starting from the beginning of the row. Analyze the available hard disk space on each of the computers. Determine the minimum available disk space within this segment. After performing these steps for the first segment, it is then repeated for the next segment, continuing this procedure until the end of the row (i.e. if the segment size is 4, computers 1 to 4 would be analyzed, then 2 to 5, etc.) Given this analysis procedure, write an algorithm to find the maximum available disk space among all the minima that are found during the analysis.- Parameters:
diskSpaceArray
- Array of Disk SpacesegmentLength
- The Segment Length- Returns:
- The Maximum Available Disk Space
-
PopulationInfection
public static final int PopulationInfection(int[][] infectionMatrix)Given a 2D grid, each cell is either a zombie or a human. Zombies can turn adjacent (up/down/left/right) human beings into zombies every day. Find out how many days does it take to infect all humans?- Parameters:
infectionMatrix
- The Infection Matrix- Returns:
- Number of Days to infect the entire Population
-
BalancedPartition
public static final boolean BalancedPartition(int[] numberArray)Given an array containing only positive integers, return if you can pick two integers from the array which cuts the array into three pieces such that the sum of elements in all pieces is equal.- Parameters:
numberArray
- The Number Array- Returns:
- TRUE - A Balanced Partition Exists
-
OptimizeMemoryUsage
public static final java.util.List<int[]> OptimizeMemoryUsage(int[] foregroundTasks, int[] backgroundTasks, int k)Give a computer with total k memory space, and an array of foreground tasks and background tasks the computer needs to do. Write an algorithm to find a pair of tasks from each array to maximize the memory usage. Notice the tasks could be done without origin order.- Parameters:
foregroundTasks
- Array of Foreground TasksbackgroundTasks
- Array of Background Tasksk
- Memory Limit- Returns:
- List of [fore, back] pairs
-
MaxPathScore
public static final int MaxPathScore(int[][] matrix)Given a two 2D matrix, find the max score of a path from the upper left cell to bottom right cell that doesn't visit any of the cells twice. The score of a path is the minimum value in that path.- Parameters:
matrix
- Matrix of Node Values- Returns:
- The Maximum Path Score
-
DiscountedSale
public static final int DiscountedSale(int[] priceArray, java.util.List<java.lang.Integer> nonDiscountedItems)A shopkeeper has a sale to complete and has arranged the items being sold in a list. Starting from the left, the shop keeper rings up each item at its full price less the price of the first lower or equally priced item to its right. If there is no item to the right that costs less than or equal to the current item's price the current item is sold at full price. Print total cost of all items. Also print the list of integers representing the indexes of the non- discounted items in ascending index order.- Parameters:
priceArray
- Array of Item PricesnonDiscountedItems
- List of Non-discounted Items- Returns:
- Total Cost of Discounted Items
-
ShortestSubarrayAtLeastSum
public static final int ShortestSubarrayAtLeastSum(int[] numberArray, int sum)Given an integer array and an integer, return the length of the shortest non-empty subarray with a sum of at least sum. If there is no such subarray, return -1. A subarray is a contiguous part of an array.- Parameters:
numberArray
- Array of Numberssum
- The Target Sum- Returns:
- Size of the Shortest Subarray
-
CountWaysToSeparate
public static final int CountWaysToSeparate(java.lang.String numberStr)Count the Number of Ways to Separate the Number- Parameters:
numberStr
- The Number- Returns:
- Number of Ways to Separate the Number
-
SplitIntoSameAverage
public static final boolean SplitIntoSameAverage(double[] numberArray)Check if the Array can be split so that the Two Sides add to the same- Parameters:
numberArray
- The Input Array- Returns:
- TRUE - The Array can be split so that the Two Sides add to the same
-
MaximumPointsInLine
public static final int MaximumPointsInLine(int[][] points)Given an array of points where points[i] = [xi, yi] represents a point on the X-Y plane, return the maximum number of points that lie on the same straight line.- Parameters:
points
- Points Grid- Returns:
- Maximum Points In Line
-
ConversionToNondecreasing
public static final boolean ConversionToNondecreasing(int[] numberArray)Given an array of integers, your task is to check if it could become non-decreasing by modifying at most one element. We define an array is non-decreasing if nums[i] le nums[i + 1] holds for every i (0-based) such that (0 le i le n - 2).- Parameters:
numberArray
- Number Array- Returns:
- TRUE - The Conversion is Possible
-
PartitionArrayMinimizeSum
public static final int PartitionArrayMinimizeSum(int[] numberArray)You are given an integer array of 2 * n integers. You need to partition it into two arrays of length n to minimize the absolute difference of the sums of the arrays. To partition the array, put each element into one of the two arrays. Return the minimum possible absolute difference.- Parameters:
numberArray
- The Number Array- Returns:
- Minimum Possible Difference
-
JumpGameDestinationReachable
public static final boolean JumpGameDestinationReachable(java.lang.String s, int minJump, int maxJump)Indicate the Destination is Reachable- Parameters:
s
- The StringminJump
- Lower Jump BoundmaxJump
- Upper Jump Bound- Returns:
- TRUE - The Destination is Reachable
-
KConcatenationMaximumSum
public static final int KConcatenationMaximumSum(int[] numberArray, int k)Given an integer array numberArray and an integer k, modify the array by repeating it k times. For example, if arr = [1, 2] and k = 3 then the modified array will be [1, 2, 1, 2, 1, 2]. Return the maximum sub-array sum in the modified array. Note that the length of the sub-array can be 0 and its sum in that case is 0. As the answer can be very large, return the answer modulo 109 + 7.- Parameters:
numberArray
- Number Arrayk
- K- Returns:
- Maximum Sum after k Concatenations
-
ReachTargetMinimumJumps
public static final int ReachTargetMinimumJumps(int[] forbiddenLocationArray, int a, int b, int target)A certain bug's home is on the x-axis at position x. Help them get there from position 0. The bug jumps according to the following rules: It can jump exactly a positions forward (to the right). It can jump exactly b positions backward (to the left). It cannot jump backward twice in a row. It cannot jump to any forbidden positions. The bug may jump forward beyond its home, but it cannot jump to positions numbered with negative integers. Given an array of integers forbidden, where forbidden[i] means that the bug cannot jump to the position forbidden[i], and integers a, b, and x, return the minimum number of jumps needed for the bug to reach its home. If there is no possible sequence of jumps that lands the bug on position x, return -1.- Parameters:
forbiddenLocationArray
- Array of Forbidden Locationsa
- Steps of Right Jumpb
- Steps of Left Jumptarget
- Target- Returns:
- Minimum Steps to reach Target
-
ClosestNextPrimeNumber
public static final int ClosestNextPrimeNumber(int number)Given an integer n, return the smallest prime palindrome greater than or equal to n. An integer is prime if it has exactly two divisors: 1 and itself. Note that 1 is not a prime number. For example, 2, 3, 5, 7, 11, and 13 are all primes. An integer is a palindrome if it reads the same from left to right as it does from right to left. For example, 101 and 12321 are palindromes. The test cases are generated so that the answer always exists and is in the range [2, 2 * 108].- Parameters:
number
- Given Number- Returns:
- Closest Next Prime Palindrome
-
ContinuousSubarraySumMod
public static final boolean ContinuousSubarraySumMod(int[] numberArray, int k)Given an integer array and an integer k, return true if the array has a continuous sub-array of size at least two whose elements sum up to a multiple of k, or false otherwise. An integer x is a multiple of k if there exists an integer n such that x = n * k. 0 is always a multiple of k.- Parameters:
numberArray
- Number Arrayk
- K- Returns:
- TRUE - The array has a continuous sub-array of size at least two whose elements sum up to a multiple of k
-
main
public static final void main(java.lang.String[] argumentArray) throws java.lang.ExceptionEntry Point- Parameters:
argumentArray
- Argument Array- Throws:
java.lang.Exception
- Thrown if Exception Encountered
-


new Products()
- Source:
Properties:
| Name | Type | Description |
|---|---|---|
products |
Array.<Object> | Products array |
products[].id |
String | Product's id |
products[].title |
String | Product's title |
products[].condition |
String | Product's condition |
products[].free_shipping |
Boolean | Product's free ship indicator |
products[].picture |
String | Product's image url |
products[].price |
Object | Product's price object |
loading |
Boolean | Loading property to show skeleton loading animation |
Component for showing the products list
Example
const products = [
{
id: "MLA920543431",
title: "Sony Playstation 4 Slim 1tb Marvel's Spider-man/horizon Zero Dawn Complete Edition/ratchet & Clank Color Negro"
condition: "new",
free_shipping: true,
location: "Monte Chingolo",
picture: "http://http2.mlstatic.com/D_810459-MLA44182891230_112020-I.jpg",
price:{
currency: "ARS",
decimals: 0,
amount: 74999
},
}
]
const loading = false
return (<Products products={products} loading{loading} />)


Borchester City Council
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Enter existing permit number
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--- layout: page title: About header-img: "img/about-bg.png" ---
I am a Biologist who fell in love with Data and changed my career path to follow that passion. These are my stories.


org.apache.openmeetings.db.entity.room
Classes
Client
Invitation
Room
RoomGroup
RoomModerator
RoomPoll
RoomPollAnswer
Whiteboard
WhiteboardItem
Enums
Invitation.MessageType
Invitation.Valid
Room.Right
Room.RoomElement
Room.Type
RoomPoll.Type


AIAIAI debuts ‘HD’ editions of its modular TMA-2 headphones
New speakers and earpads paired with the company’s existing aptx HD headband.
by Billy SteeleSince 2015, AIAIAI has offered headphone buyers something unique: a completely modular system of parts that allow you to craft your perfect set. The TMA-2 line is a collection of headbands, speakers, earpads and cables that are all designed for different use cases, sound preferences and more. Yes, you can pick a configuration for specific activities like DJing or recording in a studio, but you can also build your own from AIAIAI's selection of components. All of the options maintain the minimal, all-black design of the series. And starting today, those options include the TMA-2 HD as well as its new speakers and earpads.
Gallery: AIAIAI TMA-2 HD Wireless hands-on | 13 Photos
The TMA-2 HD comes in both wired and wireless options, depending on which headband you select. For the wired version, the existing H04 headband provides the frame for speakers to attach. When you go wireless, the H05 Bluetooth headband the company debuted in 2017 packs in aptX HD to offer 24-bit audio that's akin to CD quality. And since it's 2019, it charges via USB-C when your 18 hours of listening time are up.
Three tiny buttons provide on-board controls for play/pause, skipping tracks, volume controls, activating a voice assistant and taking/rejecting calls. Despite their size, these work well, but my main issue is their location. The controls are on the top arch of the headband, over to the left side. Typically, headphone controls are on the earcups, and even after days of use, I occasionally still reach for the wrong spot. I understand AIAIAI's decision to relocate the controls, since all the wireless bits are in the headband, which you can swap out as needed. But I've also been trained that controls are on the earcups, so remembering where they are on the TMA-2 HD is still a work in progress.
The TMA-2 HD's new S05 speaker units are built with bio-cellulose diaphragms. AIAIAI says these create "more defined" details in high frequencies, a "more pronounced" mid-range, improved overall dynamics and a natural tone. Indeed, the combination of the H05 headband and these speaker units create a sound profile that's crisp, clean and clear. Highs, mids and lows are given equal weight, and no one seems to overpower the others.
Treble cuts through without being overbearing, and the bass provides some punchy low-end tone to round out the sound. True to the company's claim, there is nice detail in the mids, and overall, the wireless model's soundscape accommodates a range of music styles. The TMA-2 HD doesn't have quite the "full" or "open" quality to the sound that similarly priced options from Sennheiser and Audio-Technica offer, but there's still a lot to like here in terms of audio.
When you switch the the wired H04 headband and new C15 hi-fi cable, the audio quality is consistent. There's still great clarity, so when you're listening to hip-hop like J Dilla's Jay Dee's Ma Dukes Collection, the hi-hat hits have detail to them, instead of just sounding like metal being slapped with a drum stick. The kick drum lays beneath the music, providing the essential backbone and ample bass. Horns, keys and other instruments shine, even when they aren't featured prominently on a track.
To keep things comfortable, new E08 earpads hug your head with soft memory foam cushions that are wrapped in Alcantara. AIAIAI says the combination of thicker padding and materials offers better noise isolation, in addition to increased comfort. The isolation isn't outstanding, as I could hear ambient noise pretty easily unless I had the music cranked up loud. And at that point, everyone around me could hear my tunes too.
The TMA-2 HD feels light on your head, which also helps keep things comfy. The padding of the earcups, paired with the soft cloth of the Alcantara feels so much better than your typical leather or leatherette wrapped components. It's more breathable and cooler than either of those, so temperature isn't an issue during long listening sessions.
Of course, the E08 joins six other options for earpads that include both over- and on-ear styles. If you prefer leather, microfiber or leatherette, you have those to pick from. They all have different levels of noise isolation as well, if that's a determining factor for you. According to AIAIAI's headphone builder, the E04 leather earpads offer "high" isolation, but I wasn't able to do a direct comparison. The E08 is simply described as "better."
The TMA-2 HD Wireless is available now from AIAIAI for $350. That's on par with most flagship wireless headphones these days, but almost all of those models offer active noise cancellation (ANC). You're definitely paying for the privilege of modular design here, and the ability to add new parts at your own pace. Plus, no matter how you buy things, AIAIAI ships all the parts deconstructed and individually packaged. Even if you buy the full TMA-2 HD set, you still get to assemble it -- which takes less than 5 minutes if you're worried about time. And if you prefer it, that wired version of the TMA-2 HD is available for $295.
If you already own TMA-2 components, you can buy what's on the HD model separately. The H05 headband is $125 (was already available), while a set of S05 speakers is $130. Those new E08 earpads are priced at $55 and the C15 cable is $40. You won't get the same sound I tested unless you opt for a TMA-2 HD configuration, but if you're only interested in one of the parts over the others, the power to choose is yours.


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Working with probe actions in LTL formulas can sometimes be difficult, as we have manually ``remember'' the occurrence of important actions in the formula.
Instead of using probe actions we can use so called ``probe states''. In contrast to probe actions, which are enabled in a single transition step only, such probes are persistent from the point in the execution of the program when they are enabled, until they are explicitly deleted. Internally they are stored in the global system dictionary (accessible using the McErlang API functions @gget/1@, et.c.).
A probe state is asserted using the functions
A probe state must be explicitly retracted using the function
when it no longer should hold.
We can test for the existence of a probe state using
the function
and the term corresponding to a probe state label for an enabled probe state
can be retrieved using the function:
2010-07-05


Toggle Controls
Attributions:
Sound Effects
Main Menu Music
General Controls
Esc - Pause
Player 1
A - Left
D - Right
W - Jump
Player 2
LeftArrow - Left
RightArrow - Right
UpArrow - Jump


{{define "server/home"}} {{template "Tpl/header" .}} {{template "Tpl/headerSecond" .}} {{template "Tpl/sidebar" .}} {{set . "active" "home"}}
|
|
| Host | {{.Connection.Host}} |
| Port | {{.Connection.Port}} |
| Username | ****** |
| Password | ****** |
| Git Hash | {{.GitHash}} |
| Built Time | {{.BuildTS}} |


Demo the inability to add cssText if you have too many stylesheets
Note: If you don't see an alert, then something went wrong


Second-known picture of notorious Billy the Kid set to auction for $1M
by IrishCentral StaffA photo of Billy the Kid, never before made public, could fetch $1 million at auction.
Taken in 1877, the rare black-and-white image shows the notorious Irish American outlaw sitting around a table playing cards with his gang - Richard Brewer, Fred Waite, and Henry Brown.
It is the second-confirmed photograph of Billy the Kid, who was also known as William H. Bonney. (His birth name was Henry McCarty.)
In the image, he is seen dressed in a white shirt, dark waistcoat and top hat, the Daily Mail reports.
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At the time of the photo, Billy the Kid was wanted for killing a blacksmith in Arizona. It is believed he went on to kill another seven men during the Lincoln County War in 1878, including Lincoln County Sheriff William Brady.
He was shot and killed by Sheriff Pat Garrett on July 14, 1881.
The tintype photograph, which comes in a cream leather frame, has never before been seen by the public because it has been kept for over a century by the same family.
The picture was given to the vendor’s grandfather by the widow of David Anderson, better known as Billy Wilson.
Wilson became a member of Billy the Kid’s gang after riding alongside him during the Lincoln County War.
Wilson received a presidential pardon in 1896 and went on to serve as sheriff of Terrell County and later worked as a US customs inspector.
Billy the Kid entrusted Wilson with the photo safe prior to his death.
When Wilson died, his widow gave the photo to the vendor’s grandfather, who was Billy Wilson’s second cousin.
In a letter describing the photograph's history, vendor Tomas R. Anderson II wrote: “When my grandfather and family went to pay their respects to the widow of David Anderson at his 1918 funeral, she gifted him, with among other items, a small leather family photograph album.
“She explained to my grandfather's family about the history of the photograph and how Billy had gifted the photo to her husband.”
The photograph has been verified by the George Eastman Museum in Texas and will go up for auction at Sofe Design Auctions of Richardson, near Dallas, Texas.
Read More: Billy the Kid and Pat Garrett photo, bought for $10, is worth millions say experts
A spokesman for Sofe Design said: "This is a historically important, incredibly rare and one-of-a-kind.
"It is only the second positively documented and analysed photographic image of Billy the Kid as well as the only known group image to include him.
"It also possesses meticulous and irrefutable Anderson family provenance dating back three generations.
"It has never been seen before and nor has it been publicly offered for sale."