| PERL5004DELTA(1) | Perl Programmers Reference Guide | PERL5004DELTA(1) |
The -T option is also forbidden on the "#!" line of a script, unless it was present on the Perl command line. Due to the way "#!" works, this usually means that -T must be in the first argument. Thus:
#!/usr/bin/perl -T -w
will probably work for an executable script invoked as "scriptname", while:
#!/usr/bin/perl -w -T
will probably fail under the same conditions. (Non-Unix systems will probably not follow this rule.) But "perl scriptname" is guaranteed to fail, since then there is no chance of -T being found on the command line before it is found on the "#!" line.
Perl 5.005 will use method lookup only for methods' "AUTOLOAD"s. However, there is a significant base of existing code that may be using the old behavior. So, as an interim step, Perl 5.004 issues an optional warning when a non-method uses an inherited "AUTOLOAD".
The simple rule is: Inheritance will not work when autoloading non-methods. The simple fix for old code is: In any module that used to depend on inheriting "AUTOLOAD" for non-methods from a base class named "BaseClass", execute "*AUTOLOAD = \&BaseClass::AUTOLOAD" during startup.
Earlier versions of Perl vary in their handling of such arguments. Perl versions 5.002 and 5.003 always brought them into existence. Perl versions 5.000 and 5.001 brought them into existence only if they were not the first argument (which was almost certainly a bug). Earlier versions of Perl never brought them into existence.
For example, given this code:
undef @a; undef %a; sub show { print $_[0] }; sub change { $_[0]++ }; show($a[2]); change($a{b});
After this code executes in Perl 5.004, $a{b} exists but $a[2] does not. In Perl 5.002 and 5.003, both $a{b} and $a[2] would have existed (but $a[2]'s value would have been undefined).
In Perl 5.004, assigning to $) is exactly symmetrical with examining it: The first number in its string value is used as the effective gid; if there are any numbers after the first one, they are passed to the "setgroups()" C function (if there is one).
However, the developers of Perl 5.004 could not fix this bug completely, because at least two widely-used modules depend on the old meaning of "$$0" in a string. So Perl 5.004 still interprets "$$<digit>" in the old (broken) way inside strings; but it generates this message as a warning. And in Perl 5.005, this special treatment will cease.
@a = qw(time now is time); print eval @a; print '|', scalar eval @a;
used to print something like "timenowis881399109|4", but now (and in perl4) prints "4|4".
The new restrictions when tainting include:
In harmony with this change, *GLOB{FILEHANDLE} is now just a backward-compatible synonym for *GLOB{IO}.
This new syntax follows the pattern of "$hashref->{FOO}" and "$aryref->[$foo]": You may now write "&$subref($foo)" as "$subref->($foo)". All these arrow terms may be chained; thus, "&{$table->{FOO}}($bar)" may now be written "$table->{FOO}->($bar)".
$^M = 'a' x (1<<16);
would allocate a 64K buffer for use when in emergency. See the INSTALL file for information on how to enable this option. As a disincentive to casual use of this advanced feature, there is no "use English" long name for this variable.
The new conversions in Perl's sprintf() are:
%i a synonym for %d %p a pointer (the address of the Perl value, in hexadecimal) %n special: *stores* the number of characters output so far into the next variable in the parameter list
The new flags that go between the "%" and the conversion are:
# prefix octal with "0", hex with "0x" h interpret integer as C type "short" or "unsigned short" V interpret integer as Perl's standard integer type
Also, where a number would appear in the flags, an asterisk ("*") may be used instead, in which case Perl uses the next item in the parameter list as the given number (that is, as the field width or precision). If a field width obtained through "*" is negative, it has the same effect as the '-' flag: left-justification.
See "sprintf" in perlfunc for a complete list of conversion and flags.
keys %hash = 200;
then %hash will have at least 200 buckets allocated for it. These buckets will be retained even if you do "%hash = ()"; use "undef %hash" if you want to free the storage while %hash is still in scope. You can't shrink the number of buckets allocated for the hash using "keys" in this way (but you needn't worry about doing this by accident, as trying has no effect).
while (defined(my $line = <>)) { $line = lc $line; } continue { print $line; } if ((my $answer = <STDIN>) =~ /^y(es)?$/i) { user_agrees(); } elsif ($answer =~ /^n(o)?$/i) { user_disagrees(); } else { chomp $answer; die "`$answer' is neither `yes' nor `no'"; }
Also, you can declare a foreach loop control variable as lexical by preceding it with the word "my". For example, in:
foreach my $i (1, 2, 3) { some_function(); }
$i is a lexical variable, and the scope of $i extends to the end of the loop, but not beyond it.
Note that you still cannot use my() on global punctuation variables such as $_ and the like.
If 'p' or 'P' are given undef as values, they now generate a NULL pointer.
Both pack() and unpack() now fail when their templates contain invalid types. (Invalid types used to be ignored.)
This version-checking mechanism is similar to the one currently used in the Exporter module, but it is faster and can be used with modules that don't use the Exporter. It is the recommended method for new code.
Previous to version 5.004, calling "rand" without first calling "srand" would yield the same sequence of random numbers on most or all machines. Now, when perl sees that you're calling "rand" and haven't yet called "srand", it calls "srand" with the default seed.  10 ) { write; } format = my i is @# $i .
However, it still fails (without a warning) if the foreach is within a subroutine:
my $i; sub foo { foreach $i ( 1 .. 10 ) { write; } } foo; format = my i is @# $i .
"isa" is also exportable and can be called as a sub with two arguments. This allows the ability to check what a reference points to. Example:
use UNIVERSAL qw(isa); if(isa($ref, 'ARRAY')) { ... }
use A 1.2 qw(some imported subs); # implies: A->VERSION(1.2);
NOTE: "can" directly uses Perl's internal code for method lookup, and "isa" uses a very similar method and caching strategy. This may cause strange effects if the Perl code dynamically changes @ISA in any package.
You may add other methods to the UNIVERSAL class via Perl or XS code. You do not need to "use UNIVERSAL" in order to make these methods available to your program. This is necessary only if you wish to have "isa" available as a plain subroutine in the current package.
sub TIEHANDLE { print "<shout>\n"; my $i; return bless \$i, shift; }
sub PRINT { $r = shift; $$r++; return print join( $, => map {uc} @_), $\; }
sub PRINTF { shift; my $fmt = shift; print sprintf($fmt, @_)."\n"; }
sub READ { $r = shift; my($buf,$len,$offset) = @_; print "READ called, \$buf=$buf, \$len=$len, \$offset=$offset"; }
sub READLINE { $r = shift; return "PRINT called $$r times\n" }
sub GETC { print "Don't GETC, Get Perl"; return "a"; }
sub DESTROY { print "</shout>\n"; }
env PERL_DEBUG_MSTATS=2 perl your_script_here
The value of 2 means to print statistics after compilation and on exit; with a value of 1, the statistics are printed only on exit. (If you want the statistics at an arbitrary time, you'll need to install the optional module Devel::Peek.)
Three new compilation flags are recognized by malloc.c. (They have no effect if perl is compiled with system malloc().)
Expected memory savings (with 8-byte alignment in "alignbytes") is about 20% for typical Perl usage. Expected slowdown due to additional malloc overhead is in fractions of a percent (hard to measure, because of the effect of saved memory on speed).
On recent systems, the fact that perl requires 2M from system for 1M allocation will not affect speed of execution, since the tail of such a chunk is not going to be touched (and thus will not require real memory). However, it may result in a premature out-of-memory error. So if you will be manipulating very large blocks with sizes close to powers of two, it would be wise to define this macro.
Expected saving of memory is 0-100% (100% in applications which require most memory in such 2**n chunks); expected slowdown is negligible.
Each unique hash key is only allocated once, no matter how many hashes have an entry with that key. So even if you have 100 copies of the same hash, the hash keys never have to be reallocated.
There is also support for building perl under the Cygwin32 environment. Cygwin32 is a set of GNU tools that make it possible to compile and run many Unix programs under Windows NT by providing a mostly Unix-like interface for compilation and execution. See README.cygwin32 in the perl distribution for more details on this port and how to obtain the Cygwin32 toolkit.
Intended for use on command line with -M option as a way of testing arbitrary scripts against an uninstalled version of a package.
When "use locale" is in effect, the current LC_CTYPE locale is used for regular expressions and case mapping; LC_COLLATE for string ordering; and LC_NUMERIC for numeric formatting in printf and sprintf (but not in print). LC_NUMERIC is always used in write, since lexical scoping of formats is problematic at best.
Each "use locale" or "no locale" affects statements to the end of the enclosing BLOCK or, if not inside a BLOCK, to the end of the current file. Locales can be switched and queried with POSIX::setlocale().
See perllocale for more information.
Module Required Version for Perl 5.004 ------ ------------------------------- Filter Filter-1.12 LWP libwww-perl-5.08 Tk Tk400.202 (-w makes noise)
Also, the majordomo mailing list program, version 1.94.1, doesn't work with Perl 5.004 (nor with perl 4), because it executes an invalid regular expression. This bug is fixed in majordomo version 1.94.2.
CGI.pm Web server interface ("Common Gateway Interface") CGI/Apache.pm Support for Apache's Perl module CGI/Carp.pm Log server errors with helpful context CGI/Fast.pm Support for FastCGI (persistent server process) CGI/Push.pm Support for server push CGI/Switch.pm Simple interface for multiple server types CPAN Interface to Comprehensive Perl Archive Network CPAN::FirstTime Utility for creating CPAN configuration file CPAN::Nox Runs CPAN while avoiding compiled extensions IO.pm Top-level interface to IO::* classes IO/File.pm IO::File extension Perl module IO/Handle.pm IO::Handle extension Perl module IO/Pipe.pm IO::Pipe extension Perl module IO/Seekable.pm IO::Seekable extension Perl module IO/Select.pm IO::Select extension Perl module IO/Socket.pm IO::Socket extension Perl module Opcode.pm Disable named opcodes when compiling Perl code ExtUtils/Embed.pm Utilities for embedding Perl in C programs ExtUtils/testlib.pm Fixes up @INC to use just-built extension FindBin.pm Find path of currently executing program Class/Struct.pm Declare struct-like datatypes as Perl classes File/stat.pm By-name interface to Perl's builtin stat Net/hostent.pm By-name interface to Perl's builtin gethost* Net/netent.pm By-name interface to Perl's builtin getnet* Net/protoent.pm By-name interface to Perl's builtin getproto* Net/servent.pm By-name interface to Perl's builtin getserv* Time/gmtime.pm By-name interface to Perl's builtin gmtime Time/localtime.pm By-name interface to Perl's builtin localtime Time/tm.pm Internal object for Time::{gm,local}time User/grent.pm By-name interface to Perl's builtin getgr* User/pwent.pm By-name interface to Perl's builtin getpw* Tie/RefHash.pm Base class for tied hashes with references as keys UNIVERSAL.pm Base class for *ALL* classes
F_GETOWN F_SETOWN O_ASYNC O_DEFER O_DSYNC O_FSYNC O_SYNC O_EXLOCK O_SHLOCK
These constants are intended for use with the Perl operators sysopen() and fcntl() and the basic database modules like SDBM_File. For the exact meaning of these and other Fcntl constants please refer to your operating system's documentation for fcntl() and open().
In addition, the Fcntl module now provides these constants for use with the Perl operator flock():
LOCK_SH LOCK_EX LOCK_NB LOCK_UN
These constants are defined in all environments (because where there is no flock() system call, Perl emulates it). However, for historical reasons, these constants are not exported unless they are explicitly requested with the ":flock" tag (e.g. "use Fcntl ':flock'").
IO::Handle IO::Seekable IO::File IO::Pipe IO::Socket
For more information on any of these modules, please see its respective documentation.
+ - * / ** <=> neg ~ abs sqrt exp log sin cos atan2 "" (stringify)
And these functions are now exported:
pi i Re Im arg log10 logn ln cbrt root tan csc sec cot asin acos atan acsc asec acot sinh cosh tanh csch sech coth asinh acosh atanh acsch asech acoth cplx cplxe
Refer to the HISTORY section in DB_File.pm for a complete list of changes. Everything after DB_File 1.01 has been added since 5.003.
File::stat Net::hostent Net::netent Net::protoent Net::servent Time::gmtime Time::localtime User::grent User::pwent
For example, you can now say
use File::stat; use User::pwent; $his = (stat($filename)->st_uid == pwent($whoever)->pw_uid);
In Perl 5.004, if an XSUB is declared as returning "void", it actually returns no value, i.e. an empty list (though there is a backward-compatibility exception; see below). If your XSUB really does return an SV, you should give it a return type of "SV *".
For backward compatibility, xsubpp tries to guess whether a "void" XSUB is really "void" or if it wants to return an "SV *". It does so by examining the text of the XSUB: if xsubpp finds what looks like an assignment to ST(0), it assumes that the XSUB's return type is really "SV *".
The most likely symptom of passing the result of "gv_fetchmethod" to "perl_call_sv" is Perl's producing an "Undefined subroutine called" error on the second call to a given method (since there is no cache on the first call).
(W) A warning (optional). (D) A deprecation (optional). (S) A severe warning (mandatory). (F) A fatal error (trappable). (P) An internal error you should never see (trappable). (X) A very fatal error (nontrappable). (A) An alien error message (not generated by Perl).
$foo{$bar} $ref->[12]->{"susie"}
or a hash slice, such as
@foo{$bar, $baz, $xyzzy} @{$ref->[12]}{"susie", "queue"}
The request was judged to be small, so the possibility to trap it depends on the way Perl was compiled. By default it is not trappable. However, if compiled for this, Perl may use the contents of $^M as an emergency pool after die()ing with this message. In this case the error is trappable once.
You probably wrote something like this:
@list = qw( a # a comment b # another comment );
when you should have written this:
@list = qw( a b );
If you really want comments, build your list the old-fashioned way, with quotes and commas:
@list = ( 'a', # a comment 'b', # another comment );
You probably wrote something like this:
qw! a, b, c !;
which puts literal commas into some of the list items. Write it without commas if you don't want them to appear in your data:
qw! a b c !;
Note that under some systems, like OS/2, there may be different flavors of Perl executables, some of which may support fork, some not. Try changing the name you call Perl by to "perl_", "perl__", and so on.
However, the developers of Perl 5.004 could not fix this bug completely, because at least two widely-used modules depend on the old meaning of "$$0" in a string. So Perl 5.004 still interprets "$$<digit>" in the old (broken) way inside strings; but it generates this message as a warning. And in Perl 5.005, this special treatment will cease.
sub outermost { my $a; sub middle { sub { $a } } }
If the anonymous subroutine is called or referenced (directly or indirectly) from the outermost subroutine, it will share the variable as you would expect. But if the anonymous subroutine is called or referenced when the outermost subroutine is not active, it will see the value of the shared variable as it was before and during the *first* call to the outermost subroutine, which is probably not what you want.
In these circumstances, it is usually best to make the middle subroutine anonymous, using the "sub {}" syntax. Perl has specific support for shared variables in nested anonymous subroutines; a named subroutine in between interferes with this feature.
When the inner subroutine is called, it will probably see the value of the outer subroutine's variable as it was before and during the *first* call to the outer subroutine; in this case, after the first call to the outer subroutine is complete, the inner and outer subroutines will no longer share a common value for the variable. In other words, the variable will no longer be shared.
Furthermore, if the outer subroutine is anonymous and references a lexical variable outside itself, then the outer and inner subroutines will never share the given variable.
This problem can usually be solved by making the inner subroutine anonymous, using the "sub {}" syntax. When inner anonymous subs that reference variables in outer subroutines are called or referenced, they are automatically rebound to the current values of such variables.
prefix1;prefix2
or
prefix1 prefix2
with nonempty prefix1 and prefix2. If "prefix1" is indeed a prefix of a builtin library search path, prefix2 is substituted. The error may appear if components are not found, or are too long. See "PERLLIB_PREFIX" in README.os2.
If you believe you have an unreported bug, please run the perlbug program included with your release. Make sure you trim your bug down to a tiny but sufficient test case. Your bug report, along with the output of "perl -V", will be sent off to<EMAIL_ADDRESS>to be analysed by the Perl porting team.
The INSTALL file for how to build Perl. This file has been significantly updated for 5.004, so even veteran users should look through it.
The README file for general stuff.
The Copying file for copyright information.
Last update: Wed May 14 11:14:09 EDT 1997
| 2019-10-21 | perl v5.30.3 |


Before Change
edge_weight_label=edge_weight_label,
)
if seed:
// seed a new random number generator
rs = random.Random(seed)
else:
// Restore the random state
rs = self._random_state
if weighted:
// Check that all edge weights are greater than or equal to 0.
// Also, if the given graph is a MultiGraph, then check that there are no two edges between
// the same two nodes with different weights.
After Change
self._check_common_parameters(nodes, n, length, seed)
self._check_weights(p, q, weighted, edge_weight_label)
rs = self._get_random_state(seed)
if weighted:
// Check that all edge weights are greater than or equal to 0.
// Also, if the given graph is a MultiGraph, then check that there are no two edges between


{% extends "picker/base.html" %} {% block main_content %} {% if league %}
Select an option from the menu above.
You can sign in as an admin using demo
as both username and password,
or as standard user using user1
, user2
, ...
user9
as username and password.
Select a demo:


{% include head.html %}
{% include nav.html %} {% include header.html %} {% include home/layout.html %} {% include requirements/layout.html %} {% include research/layout.html %} {% include hci/layout.html %} {% include design/layout.html %} {% include testing/layout.html %} {% include evaluation/layout.html %} {% include management/layout.html %} {% include footer.html %} {% include scripts.html %}


ZANDA DESIGN
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CONTACT
CV
ABOUT
ILLUSTRATION
COMMERCIAL
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ADD YOUR IMAGINATION TO THE MUSEUM
NETWORK / CHILD LABOR
AESTHETICS
T-SHIRT DESIGN FOR CAFE
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MY CURRICULUM VITAE
HOW TO EXPLAIN GRAPHIC DESIGN TO MY MOTHER ?
LUXELLA
CV FOR WEDDING MAGAZINE


Paint the cells on the bottom grid to match the top! Interact with the bottom grid by tapping once to paint the cell, and tapping twice change your paint color to the tapped cell. Experiment with different combinations to solve the puzzle, the goal is to solve it in as few moves as possible using the starting and extra colors. The lower your score the better!
Learned Rules
| Extra | Paint Color | |


--- layout: post esbma_id: 1506 title: What's New in Vault 2.0 date: 2004-02-13 15:45:03 keywords: cornsharp sourcegear teaser: This entry links to a list of new stuff in Vault 2.0. ---
I just posted a list of new stuff in Vault 2.0.


Since April 18th, I have been sending out job applications all over the midwest. Few options were panning out as July rolled around. I was starting to get extremely nervous about the coming school year and if I would even be teaching this fall.
I got an e mail from Brett Clark (twitter @Mr_Brett_Clark) asking if I would Skype in to a webinar with Jonathan Bergmann about the Flipped Classroom. Of course, I’m always looking for ways to talk to teachers interested in using a flipped approach, so I readily took the offer. As I was talking with Brett and Jon about the webinar, I mentioned that I was looking for work. Jon had already been a huge help to me, sending my name out to his contacts, and Brett was eager to help as well. His district also happened to have a couple of science openings available, so he got in touch with those principals and they ended up sitting in on the webinar session.
Long story short, after the presentation, I had an interview with the principal and a job offer that night to teach biology. I’ve just accepted the position and I’ll be the new biology teacher at Harrison High School in Evansville, IN.
As I was talking with the principal, she really stressed that I was hired to help push the science department with technology use and designing meaningful, technology-integrating instruction. I’m extremely excited about not only having a job come August, but also having the freedom to continue what I’ve done in the last year and the freedom to refine and push the flipped classroom strategy. Now that I’m teaching biology, I’m excited to begin to move away from the videos and more into guided inquiry, POGIL, and other tools that can be used in a flipped setting.
Thank you so much to everyone that has helped in my job search. It wouldn’t have been possible without people taking time to send my name around and to send names to me. Its just another example of how having a PLN can really come through when you need it.
Written on July 16th, 2011 by Brian Bennett Categorized in: All
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Provides a set of functions for interacting with the 'Pleiades' (<https://pleiades.stoa.org/>) 'API', including getting status data, places data, and creating a 'GeoJSON' based map on 'GitHub' 'gists'.
| Version: | 0.2.0 |
| Imports: | DBI (≥ 0.6-1), dplyr (≥ 0.5.0), dbplyr (≥ 1.0.0), RSQLite (≥ 1.1-2), crul (≥ 0.3.6), jsonlite (≥ 1.5), gistr (≥ 0.4.0), rappdirs |
| Suggests: | roxygen2 (≥ 6.0.1), testthat, knitr |
| Published: | 2017-06-15 |
| Author: | Scott Chamberlain [aut, cre] |
| Maintainer: | Scott Chamberlain <myrmecocystus at gmail.com> |
| BugReports: | https://github.com/ropensci/pleiades/issues |
| License: | MIT + file LICENSE |
| URL: | https://github.com/ropensci/pleiades |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | pleiades results |
| Reference manual: | pleiades.pdf |
| Vignettes: |
pleiades introduction |
| Package source: | pleiades_0.2.0.tar.gz |
| Windows binaries: | r-devel: pleiades_0.2.0.zip, r-release: pleiades_0.2.0.zip, r-oldrel: pleiades_0.2.0.zip |
| OS X binaries: | r-release: pleiades_0.2.0.tgz, r-oldrel: pleiades_0.2.0.tgz |
| Old sources: | pleiades archive |
Please use the canonical form https://CRAN.R-project.org/package=pleiades to link to this page.


{% extends "base.html" %} {% block title %}
Medieval catalogues > BENEDICTINES: THE SHORTER CATALOGUES > Bury > Leland, c. 1536-40
{% endif %}22 identified entries found.
All data was derived from the List of Identifications by Professor Richard Sharpe.
{% if not printing %}
A key to codes used in the List is available (opens in new tab).{% endif %}


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Georgia Institute of Technology, 2015
CC@@GT


Grading - See Assignment #0 Grading Sheet
Part 1
- Name
- Major
- Reason for taking CS 235
- Previous programming classes
- Will Brother Cameron's office hours work for you this semester?
Due: Mon, May 10, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #1 Grading Sheet
Create a class definition for a set of integers. A set is a collection of data without repetition or ordering. The class should have only two private data members: a pointer to a dynamically allocated array of integers and an integer that holds the size of the set.
Make sure your set has the following member functions:
Create the following overloaded operators
The program should include a test program that reads in two sets of random integers from an input file. The name of the file will be specified on the command line. The file will contain four lines of integers: the first line will contain the number of data items on the second line. The third line will contain the number of data items on the fourth line. The first and third lines are not part of the data. The integers on line two and four will be separated by spaces. The integers will be between 0 and 99. There can be duplicate integers on one line but the program should not add the duplicate integer to the set. Therefore, the number on line one and three does not necessarily mean the number of integers in the set. After the integers are read in, the program will print out the elements of each set and then perform and output the intersection, union and difference of each set. Make sure that each function and operator is used at least once to properly test the class.
Output
Example input files and the corresponding output can be found in /home/cs235/assign1. Make sure your output matches the sample output EXACTLY for each input file you test.
Due: Tue, May 11, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #2 Grading SheetCopy and look at the file stack.h from the directory /home/cs235/assign2. This is the class definition for a stack object.
Implement each member function in the stack class in a single file. Make sure all functions from stack.h are implemented in this file. Do not add or delete any part of the stack definition found in stack.h. Only use the existing data members and functions from stack.h. Here are some guidelines for each member function:
Pop - pops off the top element of the stack but does not return the value. Program will exit if it tries to pop off a value from an empty stack and print the message: ERROR: Stack Underflow
Push - puts a value onto the top of the stack. Program will exit if it tries to push a value onto a full stack and print the error message: ERROR: Stack Overflow
Top() - returns the value at the top of the stack but does not pop it off the stack. If the stack is empty then print message: ERROR: Stack Empty and exit the program.
Empty() - a function that checks if the stack is empty. Function should return true if the stack is empty, false otherwise.
Full() - a function that checks if the stack is full. Function should return true if the stack is full, false otherwise.
To test the functions copy the three programs (stack_test1.cpp, stack_test2.cpp, stack_test3.cpp) from the directory /home/cs235/assign2 and compile them with the stack functions file. For example:
g++ stack_test1.cpp username.cpp
This will create a single executable named a.out. Run the executable and see if the correct output is generated. Do the same for the other two test programs. Only turn in the file containing the stack class member functions.
Output
A series of test files and what the output should look like can be found in /home/cs235/assign2. Make sure your output matches the the same output EXACTLY for each input file you test.
Due: Thu, May 13, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #3 Grading Sheet
Write a program that does the following steps:
1. Read an infix expression from a file. The name of the file will be given on the command line.
2. Write a function that converts the infix expression into postfix using the algorithm discussed in class and the example code found in the textbook. The books code can be used but you can write your own conversion routine. Regardless, you must use a stack to do the conversion.
3. Write a function to output the assembly language equivalent of postfix expression. Again, a stack must be used to do the conversion.
4. Repeat for the next infix expression in the input file until all infix expressions have been processed.
Here are some details on some aspects of the program:
(A + B * C)/(D - E)
ABC*+DE-/
LD A Places operand A into the register.
ST A Places the contents of the register into the variable A.
AD A Adds the contents of the variable A to the register and stores the result in the register.
SB A Subtracts the contents of the variable from the register and stores the result in the register.
ML A Multiplies the contents of the register by the variable A and stores the result in the register.
DV A Divides the contents of the register by the variable A and stores the result into the register.
OutputTemporary variables will be needed and will be of the form TEMPn.
Example input files and output can be found in /home/cs235/assign3.
Make sure your output matches the sample output EXACTLY for each input
file you test.
Due: Mon, May 17, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #4 Grading SheetSuppose a certain airport has one runway. In each unit of time, one plane can land or one plane can take off, but not both. Planes arrive ready to land or to take off at random times, so at any given unit of time, the runway may be idle or a plane may be landing or taking off, and there may be several planes waiting either to land or take off. We therefore need two queues, called landing and takeoff, to hold these planes. It is better to keep a plane waiting on the ground than in the air, so the airport allows a plane to take off only if there are no planes waiting to land. Hence, after receiving requests from new planes to land or take off, the airport will allow the queue, landing, to land planes and only if the landing queue is empty will it allow a plane to take off. We will assume that each queue has a maximum of 5 planes.
Write a program to simulate this airport’s operation. The program will run in a loop from 1 to endtime. Where endtime is the number of units of time the simulation will run. The main algorithm for this program will look as follows:
for curtime = 1 to endtime
for i = 0 to randnumber1
create new plane
if landing queue is full
refuse plane to land
else
add plane to landing queue
for i = 0 to randnumber2
create new plane
if takeoff queue is full
refuse plane to takeoff
else
add plane to takeoff queue
if landing queue is not empty
land next plane in landing queue
else if takeoff queue is not empty
allow next plane in takeoff queue to takeoff
else
runway idle
Let randnumber1 and randnumber2 be numbers generated from a Poisson distribution instead of a uniform distribution. See random.cpp and random.h for the Poisson function. These files can be found in /home/cs235/assign4 along with the queue.cpp and queue.h files. Simply pass the Poisson function the expected number of arrivals or expected number of departures per time unit and it will return a random integer.
Since the input is random there is no "exact answer". A sample run of the program with user input listed in bold follows:
Units of time the simulation will run: 30
Expected number of arrivals per time unit: 0.47
Expected number of take offs rate per time unit: 0.47
Total number of planes processed: 38
Number of planes landed: 19
Number of planes taken off: 10
Number left ready to land: 0
Number left ready to take off: 1
Number of planes refused use: 8
Percentage of time runway idle: 3.33%
Average wait time to land: 1.11
Average wait time to take off: 8.60
Due: Tue, May 18, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #5 Grading Sheet
When a share of common stock of some company is sold, the profit (or, sometimes, loss) is the difference between the share's selling price and the share's purchase price This calculation is easy to understand for a single purchase or sale.
When we buy shares of stock over a long period of time and then decide to sell some (but not all) of them, we must identify the shares actually being sold. The accepted method for identification is to assume that the shares being sold are the ones that were bought first (the ones we've owned the longest).
For example, suppose we buy 100 shares at $10 per share on day 1; 200 shares at $25 per share on day 2; and 200 shares at $30 per share on day 3. Sometime later, we sell 100 shares for $35 each. Applying the "sell the oldest ones first" principles means that the 100 shares we sold were the 100 which where bought on day 1 and our profit on the sale is 100*(35 - 10) = $2500. Sometime later we sell 300 shares at $27 per share. These 300 shares consist of the 200 shares bought on day 2 and 100 of the 200 shares bought on day 3. So our profit is 200 * (27 - 25) + 100 * (27 - 30) = $400 - $300 = $100. The remaining 100 shares bought on day 3 will be the first ones sold the next time we sell shares.
Write a program that will read "BUY" and "SELL" transactions from a file. The file will be specified on the command line. Each transaction will consist of:
1. The transaction type -- either BUY or SELL
2. An integer number of shares of stock.
3. A floating point price per share (no leading $)
There will be one transaction per line. The items making up a transaction will be separated by one space.
A BUY transaction will be stored in the STL's deque. A SELL transactions will be processed as they occur.
Output
Example input files and output can be found in /home/cs235/assign5. Make sure your output matches the sample output EXACTLY for each input file you test.
Due: Thu, May 20, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #6 Grading Sheet
An order n matrix is an nxn array of numbers. For example,
(3)
is a 1 x 1 matrix,
1 3
-2 8
is a 2 x 2 matrix and
1 3 4 6
2 -5 0 8
3 7 6 4
2 0 9 -1
is a 4 x 4 matrix. Define the minor of an element x in a matrix as the submatrix formed by deleting the row and column containing x. In the preceding example of a 4 x 4 matrix, the minor of the element 7 is the 3 x 3 matrix
1 4 6
2 0 6
2 9 -1
Clearly the order of a minor of any element is 1 less than the order of the original matrix. Denote the minor of an element a[i,j] by minor(a[i,j]).
Define the determinant of a matrix a (written det(a)) recursively as follows:
1. If a is a 1x1 matrix (x), det(a) = x.
2. If a is of an order greater than 1, compute the determinant of a as follows:
a. Choose the first row. For each element a[i,j] in this row or column
form the product:
power(-1,i+j)*a[i,j]*det(minor(a[i,j]))
where i and j are the row and column position of the element choosen,
if a[i,j] is the element chosen, det(minor(a[i,j])) is the determinant
of the minor of a[i,j], and power(m,n) is the value of m raised to the nth power.
b. det(a) = sum of all these products.
Write a program that reads in a matrix from a file, prints a in matrix form, and then prints the value of det(a), where det is a function that computes the determinant of a matrix.
Input
A file name containing one matrix will be given on the command line. The file will first contain the order, n, and then each row of the matrix will follow. One row in the file is one row in the matrix. Its an error to read in a non-square matrix.
Output
Example input files and output can be found in /home/cs235/assign6. Make sure your output matches the sample output EXACTLY for each input file you test.
Due: Fri, May 21, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #7 Grading SheetWrite a program that compares the STL sort function with the quicksort function. The quicksort function is in the directory /home/cs235/examples/sorting.
The program that will generate random numbers between 1 and 500 for array sizes 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000, and 100000. After an array of size n is filled with random numbers sort it with the STL sort function then sort with the quicksort function.
Find a way to time how long it take to sort each of the array sizes for the two sorting functions. The output of your program should look similar to this where xxxxx is the time it took to sort the given size.
Size STL-sort quicksort
10000 xxxxxx xxxxxx
20000 xxxxxx xxxxxx
30000 xxxxxx xxxxxx
40000 xxxxxx xxxxxx
50000 xxxxxx xxxxxx
60000 xxxxxx xxxxxx
70000 xxxxxx xxxxxx
80000 xxxxxx xxxxxx
90000 xxxxxx xxxxxx
100000 xxxxxx xxxxxx
Due: Tue, May 25, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #8 Grading SheetComplete the Poly class in the poly.cpp file in the examples directory. Add to the class the following functions:
Write a program that reads two polynomials from a file, adds them, prints the results, reads a single value from a file, evaluates the sum at that number and prints out this result. The first line of the input file will contain the number of terms for the first polynomial. This line will be followed by same number of lines as terms (an error will result if there are not enough lines). Each line will contain a pairs of number separated by a space. The first number will be the coefficient and the second number will be the exponent. This will be followed with the value to evaluate the polynomial. The next polynomial will follow in the same format as the first polynomial. See the example input files for examples of the input file format.
Output
Example input files and output can be found in /home/cs235/assign8. Make sure your output matches the sample output EXACTLY for each input file you test.
Due: Wed, May 26, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #9 Grading SheetWrite the member functions for the Node class definition found in node.h in the directory /home/cs235/assign9. Make sure all functions from node.h are implemented. Do not add or delete any part of the node definition found in node.h. Only use the existing data members and functions from node.h.
Write a program that creates a linked list of 100 nodes. Each node will contain a single integer. The integers will be read in from a file. The file name will given on the command line. As each node is created insert it into the linked list in ascending order. In a sense you are performing an insertion sort. Print out the values of each node (10 per line) after all of the nodes have been inserted into the linked list.
Make sure all code is in one file (node.h and the code for this assignment) and turn into the appropriate directory. The node.h file should not be #included but be a part of the code you turn in.
Output
Example input files and output can be found in /home/cs235/assign9. Make sure your output matches the sample output EXACTLY for each input file you test.
Due: Fri, May 28, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #10 Grading SheetWrite the member functions for the List class definition found in list.h in the directory /home/cs235/assign10.
To test the functions copy the three programs (listtest_del.cpp, listtest_ins.cpp, listtest_lookup.cpp) and the test input files (assign10_test1.in, assign10_test2.in, assign10_test3.in) from the directory /home/cs235/assign10 and compile the programs with the list functions file. For example:
g++ listtest_del.cpp username.cpp
This will create a single executable named a.out. Run the executable and see if the correct output is generated. Do the same for the other two test programs. Only turn in the file containing the list class member functions.
Output
A series of test files and what the output should look like can be found in /home/cs235/examples/assign10. Make sure your output matches the same output EXACTLY for each input file you test.
Due: Tue, Jun 1, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #11 Grading SheetInsert all of reserved words of C++ into a hash table of size 67. Use a hash function that adds up the ASCII values of each character in the reserved word and then does a modulus of 67 on this sum. The file of reserved words can be found in /home/cs235/assign11 and is named assign11.in. When inserting items into the hash table use chaining as the collision resolution policy as discussed in class. Insert items at the end of the linked list not the front.
The example output can be found in the directory /home/cs235/assign11. Make sure your output matches the same output EXACTLY for the input file.
Due: Thu, Jun 3, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #12 Grading Sheet
Generating the Fibonacci numbers is a straight forward exercise. However, due to constraints on the size of memory locations, only a limited number of Fibonacci numbers can be generated. To overcome this limitation we will be doing addition of long positive integers using doubly-linked lists.
The Fibonacci numbers are computed as follows:
F1 = 1
F2 = 1
F3 = F1 + F2
F4 = F2 + F3
F5 = F3 + F4
.
.
.
Fn = Fn-1 + Fn-2
Each node of the linked list will contain 9 digits of the number. Your program will perform the addition of the Fibonacci numbers using the addition algorithm discussed in class. The user will be prompted for which Fibonacci number is to be computed. The program will then compute the Fibonacci number and only display that Fibonacci number. No intermediate results should be displayed. The following is an example run for this program:
Enter the Fibonacci number you wish to see: 1000
43466557686937456435688527675040625802564660517371780402481729089536555417949051890403879840079255169295922593080322634775209689623239873322471161642996440906533187938298969649928516003704476137795166849228875
Output
Make sure your output matches the above number EXACTLY. The file assign12.out which contains this number can be found in the directory /home/cs235/assign12 to help you match the output exactly.
Due: Fri, Jun 4, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #13 Grading SheetWrite the member functions for the BTree class definition found in tree.h in the directory /home/cs235/examples/trees
To test the functions copy the program (tree_test1.cpp and tree_test2.cpp) and the test files (assign13_test1.in and assign13_test2.in) from the directory /home/cs235/assign13. Compile the test files with the binary tree functions file. For example:
g++ tree_test1.cpp username.cpp
This will create a single executable named a.out. Run the executable and see if the correct output is generated. Do the same for the other two test programs. Only turn in the file containing the binary tree class member functions.
Output
A series of output files and what the output should look like can be found in /home/cs235/assign13. Make sure your output matches the same output EXACTLY for each input file you test.
Due: Tue, Jun 8, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #14 Grading SheetImplement the Binary Search Tree member functions from the file bst.h. found in the directory /home/cs235/examples/trees.
To test the functions copy the program bst_test.cpp and the test file assign14.in from the directory /home/cs235/assign13. Compile the bst_test.cpp file with the binary search tree functions file:
g++ bst_test.cpp username.cpp
This will create a single executable named a.out. Run the executable and see if the correct output is generated. Do the same for the other two test programs. Only turn in the file containing the binary search tree class member functions.
Output
The output for this assignment can be found in /home/cs235/assign16. Make sure your output matches the same output EXACTLY.
Due: Wed, Jun 9, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #15 Grading SheetImplement the Huffman Code project as outlined in class as follows:
Read the letters and frequencies from a file named assign15.in. An example file can be found at /home/cs235/assign15. The file contains frequencies for each letter of the alphabet. The first frequency in the file is for the letter A, the second for letter B, ... down to the last line for letter Z.
Create the Huffman binary tree as outlined in class. Make sure that the following rules are followed when creating the tree so that the output will match:
After the tree is completed, print out each letter and its Huffman coding.
Output
The output for this assignment can be found in /home/cs235/assign15.
Make sure your output matches the same output EXACTLY.
Due: Fri, Jun 11, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #16 Grading SheetFor this assignment write a program that uses an associative array to count the number of occurrences of words from a data file. The array indexes will be the words and the value of each element of the array will be a count of the number of occurrences of that word. STL maps will be used to implement the associative array.
The input filename will be specified as a command line argument.
The input file will be the text of the Book of Mormon. There will be no verse numbers, chapter numbers or chapter summaries in the text. The input file can be found in /home/cs235/assign16.
Output
The output for this assignment can be found in /home/cs235/assign16. Make sure your output matches the same output EXACTLY.
Due: Mon, Jun 14, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #17 Grading SheetImplement the heap sort as a function using the algorithm discussed in class. You may used the STL vector container on an array to store the data.
Write a driver program that gets a filename from the command line. The program then opens this file and reads in the numbers. The numbers will be between 1 and 50. Have the program first heapify the array then call the heap sort function. Then print out the values so they match the example output files.
Output
A series of test files and what the output should look like can be found in /home/cs235/examples/assign17. Make sure your output matches the same output EXACTLY for each input file you test.
Due: Tue, Jun 15, 2004, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #8 Grading SheetWrite a function that implements the merge sort as a linked list. Use may use your linked list code or the STL list container but you may not use the list.sort function!!
Write a driver program that gets a filename from the command line. The program then opens this file and reads in the numbers into a linked list. Insert each number at the beginning of the list. The numbers will be between 1 and 50. As each number is placed into the list, print its value on the screen (10 numbers per line). Then call the merge sort function and output the resulting linked list.
Output
A series of test files and what the output should look like can be found in /home/cs235/examples/assign18. Make sure your output matches the same output EXACTLY for each input file you test.
Due: Wed, Jun 16, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #19 Grading SheetImplement the following functions from the Graph ADT using an adjacency-list representation:
- Construct an empty graph
- Check if graph is empty
- Insert a new node
- Insert a directed edge between two existing nodes or from a node to itself
Write a driver program to test the graph functions that creates the following graph:
The output for this assignment can be found in /home/cs235/assign19. Make sure your output matches the same output EXACTLY.
Due: Thu, Jun 17, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #20 Grading SheetAssignment
Write a program that creates the following graph using your graph library:
Implement the breadth-first and depth-first algorithms as discussed in class and then apply these functions to visit the nodes in the above graph. When adding adjacent nodes to the container please put them on in alphabetical order.
The output for this assignment can be found in /home/cs235/assign20. Make sure your output matches the same output EXACTLY.
Due: Mon, Jun 21, 2004 by midnight
Turn In: submit filename
Grading - See Assignment #21 Grading SheetImplement the Shortest Path Algorithm as discussed in class.
Read the graph information from a file where the file name is specified on the command line. The format of the file will be one line per vertex. The vertex number will come first followed by the nodes adjacent to the vertex. All numbers will be separated by one space.
The user will first enter a beginning vertex and then an ending vertex. The program will then fill out the table T as described in class using the beginning vertex as the starting vertex. The program will then print out the shortest path from the beginning vertex to ending vertex.
Output
The input and output for this assignment can be found in /home/cs235/assign21. Please note the user must enter the starting node and ending node. Make sure your output matches the same output EXACTLY.
Due: Wed, Jun 23, 2004 by midnight
Turn In: submit filename
Grading - See Final Grading Sheet
Open up a GEDCOM file named cameron.ged. Find a copy of this file in /home/cs235/examples/final. Read and store all individuals in this GEDCOM file in a linked list. Each node of the linked lists will contain the individuals full name, birth date and a pointer to the mother and father. After all the individuals have been inserted into a linked list, set the mother and father pointers for each person in the list.
Sort the list alphabetically by last name, then first name, then by birth date (if necessary) using the Merge Sort. Print the list of sorted individuals to a file called sorted.dat. The file should contain one line per person and should look as follows:
Gregory Lawrence Cameron, b. 8 Nov 1963
Lawrence Clyde Cameron, b. 22 Dec 1941
Paul Roland Cameron, b. 2 Jul 1908
...
...
In addition to your program printing out the sorted list of names, your program should print on the screen the following:
The Ancestors of Gregory Lawrence Cameron:
Parents:
Lawrence Clyde Cameron b. 22 Dec 941
Bonnie Lorraine Downen b. 28 Mar 1945
Grand Parents:
Paul Roland Cameron b. 2 Jul 1908
Margaret Ferne Simdars b. 7 Dec 1911
Edward Rodney Downen b. 10 Nov 1917
Mildred Claire Marsh b. 10 Dec 1919
Great Grandparents
. . .
YOU MAY NOT USE THE STL CONTAINERS, ITERATORS OR ALGORITHMS ON THIS ASSIGNMENT!!!
Output
See the directory /home/cs235/final/ for the exact output of the sorted list and the pedigree. Make sure your output matches the same output EXACTLY for each input file you test.


I was having a tough time with some of the tests during the (Repl.it) exercise the one thing that comes to mind is during one of the tests I was stuck on and couldn't see where or what I was doing wrong until I walked away and just thought about where I was going wrong when I got back it was clear as day I was using brackets and instead I should have been using curly brackets and as soon as I fixed this everything worked out and I was able to move on to the next test.
This time I encountered many problems while trying to do the JS-Olympics, There were so many parts that were giving me a hard time that I was googling so much I thought it would break and I'd be stuck doing the JS-Olympics for days on end but I was able to soldier through it with the help of google and a few of some other the other EDA students and also some of my mates that work in the industry.


Dear sir, I am Mr. Kevin Woodgate, an attorney at law. A deceased client of mine, by name Mr. Andrew Parker, who hereinafter shall be referred to as my client, died as a result of a heart-related condition in November 2002. I have contacted you to assist in repatriating the money left behind by my client before it is confiscated or declared unserviceable by the bank where this deposit valued at 45 million dollars is lodged. This bank has issued me a notice to contact the next of kin, or the account will be confiscated because there is a government gazzette/mandate/authorising all banks to freeze or consificate any account that has not been servicable in a long period of time, this is geared towards capital flight for the economy. My proposition to you is to seek your consent to present you as the next-of-kin and beneficiary of my named client, so that the proceeds of this account can be paid to you, then we can share the amount on a mutually agreed-upon percentage. All legal documents to back up your claim as my client's next-of-kin will be provided. All I require is your honest cooperation to enable us see this transaction through. This will be executed under a legitimate arrangement that will protect you from any breach of the law. If this business proposition offends your moral values, do accept my apology but if not, then contact me at once to indicate your interest, by giving me your telephone number, fax number and your address. Kindly reply to<EMAIL_ADDRESS>Regards, Barrister Kevin Woodgate.


Jawr was designed to be able to use bundled resources without losing the ability to use a fast development environment. Bundling resources together and minimizing them by removing whitespace and comments is great for production servers, but trying to debug a minified script that lacks comments is not going to make anyone's life easier. Also, if the strict caching policy that Jawr uses for production was used in development, you would basically need to clear your browser's cache every time you changed a line in a CSS or in a script to be able to test your changes. Thus, when you activate Jawr development mode, things change in the way Jawr works to make your life as a developer a lot easier.
To toggle debug mode, you can set the flag jawr.debug.on in the config file.
The main difference between production and development modes is that bundle files are not served directly. Rather, each of the components in a bundle will be served sepparately in the same order that it would be included in the bundle. To understand this, we need an example. Imagine we had a very simple directory structure like this one:
As you see, there is a sorting file in the /lib directory. This file is forcing prototype.js to be the first added to a bundle.
For this structure, we define two bundles in the following form:
jawr.js.bundle.globalBundle.id=/bundles/global.js jawr.js.bundle.globalBundle.global=true jawr.js.bundle.globalBundle.mappings=/js/lib/** jawr.js.bundle.globalBundle.prefix=/global01 jawr.js.bundle.fooBundle.id=/bundles/fooBundle.js jawr.js.bundle.fooBundle.mappings=/js/foo.js,/js/bar.js jawr.js.bundle.fooBundle.prefix=/foo01
Finally, we invoke a bundle in a page:
<%@ taglib uri="http://jawr.net/tags" prefix="jwr" %> <html> <head> <!-- Invoking the fooBundle by using the path of one of its members --> <jwr:script src="/js/bar.js"/> </head> ...
Now, visiting this page has a very different effect depending on the mode Jawr is running. In production mode, the output is very straightforward:
<script type="text/javascript" src="/myWarContext/global01/bundles/global.js" ></script> <script type="text/javascript" src="/myWarContext/foo01/bundles/fooBundle.js" ></script>
We get the global bundle first, then the one we invoked, as expected.
However, if we open the same page while in development mode, the output would look like this:
<script>/*Start adding members resolved by '/js/bar.js'. Bundle id is: '/bundles/fooBundle.js'*/ </script> <script type="text/javascript" src="/myWarContext/lib/prototype.js?d=1864721312" ></script> <script type="text/javascript" src="/myWarContext/lib/sound.js?d=4725551312" ></script> <script type="text/javascript" src="/myWarContext/lib/slider.js?d=2131218647" ></script> <script type="text/javascript" src="/myWarContext/js/foo.js?d=7186421312" ></script> <script type="text/javascript" src="/myWarContext/js/bar.js?d=6418721312" ></script> <script>/*Finished adding members resolved by /js/bar.js */</script>
There are major differences here:
The caveat here is very clear: never forget to switch off development mode in production or the results might be catastrophic for your bandwidth. As stated before, it's a good idea to use the JVM param -Dnet.jawr.debug.on=false within the startup script of your production server to be safe against this kind of mistake. Also, it is recommended that you have at least one integration step previous to production where you don't use development mode.
To further protect you from this kind of problem, a warning is written to the log anytime you start Jawr in development mode.
Warning: Internet explorer has a 30 stylesheet limit. This means that in debug mode you might hit this limit if you have bundles that join over 30 stylesheets, since after the 30th IE will no longer parse and execute further stylesheets. Keep this in mind when developing your CSS files.


Present Door Control Unit:
Hmm... So the password is supposed to be the same as the one for the Goddess of the Present Statue, right?
Enter the password.


My beloved Auntie, who was always so full of certitude, always made sure to sign every contractile agreement with a confident flourish of her pen. [G|D]
Biotin, a nutrient found in many foods, is an essential part of human anatomy, a fact which absolutism holds true for all creatures on the planet. [G|D]
Though old Babbitt had battled bravely in the war, he found that life outside the battlefield had a much more contextual complexity, making it all the more challenging. [G|D]
The arboretum near town was well known for its plethora of astute visitors, each with their own particular archetype of appreciation for the wonders of nature. [G|D]


Credit controller Debt collection agent
Credit controllers help firms get the money they're owed from businesses and individuals.
1. Entry requirements
There are no set requirements, but GCSEs (A* to C) including maths can help.
Previous office work will be an advantage, especially in customer service or accounts. A qualification in bookkeeping or accounts may be useful.
You could get into this career through an apprenticeship.
Courses available in your area
Debt Management Administrator Apprentice
- Location: Manchester
- Duration: 12 months
- Type: Full time
- Qualification: Intermediate Level Apprenticeship
2. Skills required
You'll need:
- the ability to work to strict deadlines
- good negotiation skills
- the ability to explain financial matters clearly
- administrative and computer skills
3. What you'll do
You'll work in:
- a 'third party' collection agency, paid to collect debts from businesses or individuals, or
- a company's finance or credit department, chasing late payments from suppliers and customers
Your day-to-day tasks may include:
- contacting individuals or business customers when payment is overdue
- checking credit records and tracing missing debtors
- setting up repayment plans and working with debt counsellors
- setting up and maintaining customer files
- processing payments
- starting legal proceedings if debts are not paid within an agreed time
- liaising with solicitors and bailiffs
You may work at a debt collection agency as a 'field collector', travelling to debtors to collect payments in person.
4. Salary
Starter: £16,000 to £22,000
Experienced: £22,000 to £27,000
Highly Experienced: £30,000 or more
These figures are a guide.
Self-employed credit controllers set their own rates.
5. Working hours, patterns and environment
You'll work standard office hours, or do shifts including evenings and weekends.
You'll be based in an office or a call centre. If you're working as a field collector you will usually work from home and travel to visit clients at their home or business.
6. Career path and progression
With experience and professional qualifications, you could be promoted to credit manager. You could also start your own collection agency or set up as a freelance field collection agent.
7. Current vacancies
Incomes Recovery Coordinator / Arrears / Debt Collection
- Location: Yeovil
- Job type: Full time
- Salary: £24,333.00 per year
Debt Negotiator
- Location: Sheffield
- Job type: Full time
- Salary: £17,000 a year
Last updated: 23 March 2016


February 13, 2019 -
Stephan Ewen
(@stephanewen)
Fabian Hueske
(@fhueske)
Xiaowei Jiang
(@XiaoweiJ)
Last week, we broke the news that Alibaba decided to contribute its Flink-fork, called Blink, back to the Apache Flink project. Why is that a big thing for Flink, what will it mean for users and the community, and how does it fit into Flink’s overall vision? Let’s take a step back to understand this better…
A Unified Approach to Batch and Streaming # Since its early days, Apache Flink has followed the philosophy of taking a unified approach to batch and streaming data processing.
...
Continue reading »
December 26, 2018 -
The Apache Flink community released the sixth and last bugfix version of the Apache Flink 1.5 series.
This release includes more than 47 fixes and minor improvements for Flink 1.5.5. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.5.6.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.5.6</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.5.6</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.5.6</version> </dependency> You can find the binaries on the updated Downloads page.
...
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December 22, 2018 -
The Apache Flink community released the third bugfix version of the Apache Flink 1.6 series.
This release includes more than 80 fixes and minor improvements for Flink 1.6.2. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.6.3.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.6.3</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.6.3</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.6.3</version> </dependency> You can find the binaries on the updated Downloads page.
...
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December 21, 2018 -
The Apache Flink community released the first bugfix version of the Apache Flink 1.7 series.
This release includes 27 fixes and minor improvements for Flink 1.7.0. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.7.1.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.7.1</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.7.1</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.7.1</version> </dependency> You can find the binaries on the updated Downloads page.
...
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November 30, 2018 -
Till Rohrmann
(@stsffap)
The Apache Flink community is pleased to announce Apache Flink 1.7.0. The latest release includes more than 420 resolved issues and some exciting additions to Flink that we describe in the following sections of this post. Please check the complete changelog for more details.
Flink 1.7.0 is API-compatible with previous 1.x.y releases for APIs annotated with the @Public annotation. The release is available now and we encourage everyone to download the release and check out the updated documentation.
...
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October 29, 2018 -
The Apache Flink community released the fifth bugfix version of the Apache Flink 1.5 series.
This release includes more than 20 fixes and minor improvements for Flink 1.5.4. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.5.5.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.5.5</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.5.5</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.5.5</version> </dependency> You can find the binaries on the updated Downloads page.
...
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October 29, 2018 -
The Apache Flink community released the second bugfix version of the Apache Flink 1.6 series.
This release includes more than 30 fixes and minor improvements for Flink 1.6.1. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.6.2.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.6.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.6.2</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.6.2</version> </dependency> You can find the binaries on the updated Downloads page.
...
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September 20, 2018 -
The Apache Flink community released the fourth bugfix version of the Apache Flink 1.5 series.
This release includes more than 20 fixes and minor improvements for Flink 1.5.4. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.5.4.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.5.4</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.5.4</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.5.4</version> </dependency> You can find the binaries on the updated Downloads page.
...
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September 20, 2018 -
The Apache Flink community released the first bugfix version of the Apache Flink 1.6 series.
This release includes 60 fixes and minor improvements for Flink 1.6.1. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.6.1.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.6.1</version> </dependency> You can find the binaries on the updated Downloads page.
...
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August 21, 2018 -
The Apache Flink community released the third bugfix version of the Apache Flink 1.5 series.
This release includes more than 20 fixes and minor improvements for Flink 1.5.3. The list below includes a detailed list of all fixes.
We highly recommend all users to upgrade to Flink 1.5.3.
Updated Maven dependencies:
<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.5.3</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-streaming-java_2.11</artifactId> <version>1.5.3</version> </dependency> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-clients_2.11</artifactId> <version>1.5.3</version> </dependency> You can find the binaries on the updated Downloads page.
...
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Boy’s Surface
Breather Surface
Borromean Rings (Rectangular)
Cube
Crescent
Cross Cap
Cube (Snub)
Cuboctahedron
Cube (Truncated)
Corkscrew Surface
Cylinder (Hyperbolic)
Cuboctahedron (Truncated)
Deltoid
Dini’s Surface
Dodecahedron
Dodecahedron (Snub)
Dodecahedron (Knotted)
Disdyakis Triacontahedron
Dodecahedron (Truncated)
Gabriel’s Horn
Great Icosahedron
Great Rombicosidodeahedron
Helicoid (Hyperbolic)
Henneberg’s Surface
Icosahedron
Icosidodecahedron
Icosahedron (Geodesic)
Icosahedron (Truncated)
Octahedron
Octahedron (Truncated)
One Sheet Hyperboloid
Octahedron (Hyperbolic)
Parabola
Poweroid
Prism Family
Penrose Circle
Pyramid Family
Penrose Square
Polygon Family
Penrose Triangle
Paraboloid (Hyperbolic)
Shell
Seashell
Shoe Surface
Sphere Family
Steiner’s Surface
Steinbach Screw
Tesseract
Torus Family
Toroid (Isohedral)
Tetrahemihexahedron
Tetrahedron (Truncated)
Tetrahedron (Hyperbolic)
Unk Surface
Vase


THE GLEANERS AND I (Les Glaneurs et la Glaneuse)
Directed by Agnes Varda
Plan B NR 82 min. subtitles
In New York City, people put out their unwanted furniture one night a week, and in my garret days my apartment and those of many of my friends were furnished with items rescued from curbside a step ahead of the trash collectors. I still have a piece or two of these foraged treasures. Like most of us, I am a sort of gleaner.
Traditionally, gleaners are people who gather what's been left in the fields after the crop has been harvested.  By further extension they're artists who turn waste into beauty. And by one more extension, they're Agnes Varda, the extraordinary French filmmaker known as the Grandmother of the New Wave, who has been creating films for nearly half a century (Cleo From 5 to 7; One Sings, the Other Doesn't).
In her wonderful new documentary about people who, out of necessity, principle, obsession, or just for the fun of it, gather up the discards of a disposable society, Varda herself is a gleaner of stories and people on the fringes of everyday life. Armed with her digital camera, her photographer's eye, her irrepressible wit, her curiosity, and her social conscience, she gathers the gatherers into a film that is informative and funny and wise.
Les Glaneurs, a famous 1867 painting by French Barbizon painter Jean-FranE7ois Millet, shows three peasant women in a wheat field = gathering up what had been left behind after the harvest. Varda visits this painting at the MusE9e d'Orsay, and then takes us out on a = gleaning expedition of her own. We go to potato fields and apple orchards, market stalls and restaurant dumpsters. We meet patrons of a rural bar who explain the difference between "gleaning" and "picking", and a black-robed lawyer who quotes statute and verse on ancient gleaning rights established back in 1554 by the young King Henry IV. We visit with a salvage artist whose medium is what people cast aside: "Where others see a cluster of junk, I see a cluster of opportunity."
There is not quite enough material here even for this film's modest 82 minute length, and so it tends to double back on itself from time to time. But the people are amiable, and Varda is in no hurry. From time to time she shows us shots of her own graying hair and liver-spotted, wrinkled skin as she muses about the always surprising phenomenon of aging. From a junk pile, she salvages a clock with no hands. Varda, in her 70s, is not one to countenance waste, and she makes it clear she is committed to gleaning abundant riches out of what remains of her time here.
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Recipe 19.6. Dividing an Iterable into n Slices of Stride n
Credit: Gyro Funch, Alex Martelli
Problem
You have an iterable p and need to get the
n non-overlapping extended slices of
stride n, which, if the iterable was a
sequence supporting extended slicing, would be
p[0::n],
p[1::n],
and so on up to
p[n-1::n].
Solution
While extended slicing would return sequences of the same type we
start with, it's much more sensible to specify a
strider function that, instead, solves this
problem by returning a list of lists:
def strider(p, n):
""" Split an iterable p into a list of n sublists, repeatedly taking
the next element of p and adding it to the next sublist. Example:
>>> strider('abcde', 3)
[['a', 'd'], ['b', 'e'], ['c']]
In other words, strider's result is equal to:
[list(p[i::n]) for i in xrange(n)]
if iterable p is a sequence supporting extended-slicing syntax.
"""
# First, prepare the result, a list of n separate lists
result = [ [ ] for x in xrange(n) ]
# Loop over the input, appending each item to one of
# result's lists, in "round robin" fashion
for i, item in enumerate(p):
result[i % n].append(item)
return result
Discussion
The function in this recipe takes an iterable
p and pulls it apart into a user-defined
number n of pieces (specifically, function
strider returns a list of sublists), distributing
p's items into what would
be the n extended slices of stride
n if p were a
sequence.
If we were willing to sacrifice generality, forcing argument
p to be a sequence supporting extended
slicing, rather than a generic iterable, we could use a very
different approach, as the docstring of strider
indicates:
def strider1(p, n):
return [list(p[i::n]) for i in xrange(n)]
Depending on our exact needs, with such a strong constraint on
p, we might omit the
list call to make each subsequence into a list,
and/or code a generator to avoid consuming extra memory to
materialize the whole list of results at once:
def strider2(p, n):
for i in xrange(n):
yield p[i::n]
or, equivalently:
import itertools
def strider3(p, n):
return itertools.imap(lambda i: p[i::n], xrange(n))
or, in Python 2.4, with a generator expression:
def strider4(p, n):
return (p[i::n] for i in xrange(n))
However, none of these alternatives accepts a generic iterable as
peach demands a full-fledged
sequence.
Back to this recipe's exact specs, the best way to
enhance the recipe is to recode it to avoid low-level fiddling with
indices. While doing arithmetic on indices is conceptually quite
simple, it can get messy and indeed is notoriously error prone. We
can do better by a generous application of module
itertools from the Python Standard Library:
import itertools
def strider5(p, n):
result = [ [ ] for x in itertools.repeat(0, n) ]
resiter = itertools.cycle(result)
for item, sublist in itertools.izip(p, resiter):
sublist.append(item)
return result
This strider5 version uses three functions from
module itertoolsall of the functions in
module itertools return iterable objects, and, as
we see in this case, their results are therefore typically used in
for loops. Function repeat
yields an object, repeatedly, a given number of times, and here we
use it instead of the built-in function xxrange to
control the list comprehension that builds the initial value for
result. Function cycle takes an
iterable object and returns an iterator that walks over that iterable
object repeatedly and cyclicallyin other words,
cycle performs exactly the round-robin effect that
we need in this recipe. Function izip is
essentially like the built-in function zip, except
that it returns an iterator and thus avoids the memory-consumption
overhead that zip incurs by building its whole
result list in memory at once.
This version achieves deep elegance and conceptual simplicity
(although you may need to gain some familiarity with
itertools before you agree that this version is
simple!) by foregoing all index arithmetic and leaving all of the
handling of the round-robin issues to
itertools.cycle. resiter, per se,
is a nonterminating iterator, but the function deals effortlessly
with that. Specifically, since we use resiter
together with p as arguments to
izip, termination is assured (assuming, of course,
that p does terminate!) by the semantics
of izip, which, just like built-in function
zip, stops iterating as soon as any one of its
arguments is exhausted.
See Also
The itertools module is part of the Python
Standard Library and is documented in the Library
Reference portion of Python's online
documentation; the Library Reference and
Python in a Nutshell docs about the built-ins
zip and xrange, and
extended-form slicing of sequences.
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