Minimalist Codeforces Parser

What is it?

A lightweight, easy to customize contest parser and pretests runner

What's the need?

During programming contest of stringent time limits, even few seconds matter. It is time consuming to copy past test cases and execute the code on local again and again.

Using this tool in a 2-word command (parse_contest X) it will download and create a folder structure with all the pretests (Sample Testcases) for that programming contest.

Also using a 2-word (test Y) command it will execute all pretests for any problem.

In other words it will remove all manual effort in copy pasting inputs and comparing outputs for all pretests (Sample Testcases).

How to use?

Step-1: Navigate to the project folder.

Step-2: run command: [sample command : parse_contest 1427 ] :
It will create directory structure like below: (with cpp files generated using template in ref folder)

└───1427
   │    A.cpp
   │    B.cpp
   └───pretests
       ├───A
       │       input_0.txt
       │       output_0.txt
       │
       └───B
              input_0.txt
              input_1.txt
              input_2.txt
              input_3.txt
              output_0.txt
              output_1.txt
              output_2.txt
              output_3.txt

Step-3: Running testcases: [sample command : test B ]

> test B
------------------------------
pretest - 0: PASSED
6
ac?b?c
24
24
------------------------------
pretest - 1: PASSED
7
???????
2835
2835
------------------------------
pretest - 2: PASSED
9
cccbbbaaa
0
0
------------------------------
pretest - 3: Failed
4
????
12
13

Color scheme

Entity	Color
Pretest Status	Green if success else Red
Pretest Input	Yellow
Expected Output	White
Programs Output	Green if success else Red

Contents

parse_contest.bat:

• Calls parse_contest.py and change directory to current folder
  

parse_contest.py:

• Fetch contest details from contest page and get all problems list
  
• fetchs pretests by starting new thread for each problem page
  
• generates apropriate directory tree

ref/ref.cpp:

• Template cpp file
  

ref/run.bat:

• Compile and Run Cpp
  
• Compile only if executable is modified before the code
  

ref/test.bat:

• calls test_script.py with problem
  

ref/test_script.py:

• script to execute all pretests one by one for given problem