Codeforces Hacking Script

Automates the process of hacking solutions in Codeforces Educational rounds.

Requirements

Refer to requirements.txt

How to use?

• Enter your test case in input.txt.
  Note
  • Avoid using extra spaces/newline in the end
  • The maximum size of the test file can be 256KB due to upload limit on codeforces
• Enter expected output in output.txt
• If the problem requires custom checker(e.g.- Case insensitive) then update the Checker function in checker.py. The current checker does character by character matching.
• Run the script using

python3 main.py

• Enter your codeforces handle, password, contest id and problem id

Enter your handle/email = coder_h
Enter password = ************
Enter contest id = 1283
Enter problem id = C

How it works?

• The script fetches all the accepted submissions for the problem.
• Runs each code on the given test case using Codeforces' custom invocation.
• Compares the expected output and output given by the code.
• If the outputs don't match, the script hacks the solution.

Note

• The script runs in background. If you wish to see how it actually works, comment line no. 20 in main.py.