contest-codeforces

Collection of Codeforces problem solutions (mostly C++). Organized by rounds and individual problem files.

Repository layout

• gameOnarray.cpp, incermentalSubarray.cpp, primeGaming.cpp, ... — standalone C++ solutions in the root.
• educationalRound182/, pinelyRound/, Round1049/, round1052/, ... — folders for round-specific solutions. Each folder contains individual problem source files (usually .cpp).

How to compile and run (Windows PowerShell)

Most files are single-file C++ solutions (no external dependencies). Examples below assume you have a C++ compiler installed (g++ from MinGW/MSYS2, or Visual Studio cl).

Using g++ (MinGW / MSYS2 / WSL):

# compile
g++ -std=c++17 -O2 -pipe path\to\solution.cpp -o solution.exe

# run with optional input redirection
.\solution.exe < input.txt

Using Microsoft Visual C++ (Developer Command Prompt / proper environment):

# compile (from Developer Command Prompt where cl is available)
cl /std:c++17 /O2 path\to\solution.cpp /Fe:solution.exe

# run
.\solution.exe < input.txt

Notes:

• Replace path\to\solution.cpp with the actual file path (for example round1056\sol3.cpp).
• If you use WSL, build/run commands are the same as on Linux (use g++ in WSL shell).

Suggested workflow

1. Open the folder in VS Code.
2. Edit or choose a solution file (for example round1056/sol3.cpp).
3. Compile via the integrated terminal using the commands above.
4. Run with sample input using .\solution.exe < sample_input.txt.

Contributing

• Add small, well-tested changes. Name new files clearly (e.g., roundXXXX/solY.cpp).
• Keep solutions focused and single-file where possible.

Contact

If you want improvements or have questions, create an issue or contact the repository owner.