cjoa / codeforcesrunner

A simple tool which run Codeforces' testcases easier

Installation

The library lxml is needed. Please reference here for more information.

If you are an Debian/Ubuntu user, simply type:

$ sudo apt-get install python3-lxml

Usage

Using Codeforces Problem 198A problem as an example.

Donwload Sample Tests

The url of this problem is http://codeforces.com/problemset/problem/198/A. Please notice the contest_id is 198 and the problem_id is A.

$ cf.py -c 198 -p A     # download this problem
$ cf.py -c 198          # download all problems in this contest

There is another url http://codeforces.com/contest/198/problem/A which indicated the same problem. You can see the contest_id and problem_id is same, so it wouldn't be a problem.

Running the Tests

Suppose your source code is named A.{lang}, which {lang} could be cpp, c, java or py for the current version.

Then, simple run cf.py A.{lang}, you will get the result like this:

$ cf.py A.java
output:
2
=== Case #1: AC (85 ms) ===

output:
2
answer:
3
=== Case #2: WA (83 ms) ===

press enter to continue or <C-c> to leave.
output:
Exception in thread "main" java.lang.Exception
        at A.<init>(A.java:12)
        at A.main(A.java:18)
answer:
0
=== Case #3: RE (95 ms) ===

press enter to continue or <C-c> to leave.

Configurations

The file `conf.py' contains the compile & execute commands of support languages, so you could add more commands to support more languages easily by yourself.

The section [global] in conf.py contains some setting about the test file's name. Since the source code's name and the test file's name must be exactly same, you could change these settings to follow your naming convension. For example:

In the default setting:

PATTERN = "upper({id})"
REPLACE_SPACE = "_"
EXTENSION = ".xml"

the filename would be 'A.xml'

Or you could added the contest id and problem's name: (also notice the replace_space)

PATTERN = "{contest}-upper({id})-lower({name})"
REPLACE_SPACE = "-"
EXTENSION = ".xml"

the filename would be 'A-about-bacteria.xml'

Set variable EXTRACT_INDIVIDUAL_TEST to True, if you wish store individual test cases in separate plain text files (with extension .in).

Similarly, set variable CREATE_DIRECTORY_PER_PROBLEM to True, if you want to work with a separate directory for each problem,

About

This tool is only verifiid on Linux now, but I think it could be run on other platforms, although it maybe need a little modify.

Please feel free to fork and any suggesions are welcome.