Solutions, notes, and writeups from competitive programming, CTFs, math practice, and puzzle events.
This repository is mostly a personal archive: code is grouped by platform or event, and individual solutions are usually kept close to the original problem inputs, experiments, and notes.
algorithms/- Algorithm design problems.adventofcode2025/- Go solutions for Advent of Code 2025, with per-day folders and livestream links.CSES/- CSES.fi problemset solutions
capture-the-flag/- CTF notes, challenge files, and exploit scripts.