Sources:
- https://github.com/ecnerwala/cp-book/
- https://github.com/dacin21/dacin21_codebook
- https://github.com/nealwu/competitive-programming
- https://github.com/the-tourist/algo
- https://github.com/bqi343/cp-notebook
- https://github.com/kth-competitive-programming/kactl
- https://github.com/cuber2460/acmlib07/
- https://mimuw.edu.pl/~ms360974/treningi/ACMLib.pdf
- https://github.com/tonowak/acmlib
- https://github.com/maspypy/library
- https://github.com/Stonefeang/librewoosh
- https://github.com/KacperTopolski/kactl
- https://github.com/ecnerwala/icpc-book