Guessing a 617-digit integer using ancient math! A journey through number theory, carnival games, and cryptography in AmateursCTF 2023.

Play a JSON-controlled strategy game through WebSocket——this is the Hacky Holidays 2022 programming challenge “Port Authority.”

During MHSCTF 2023, I utilized Edmonds’ beautifully crafted “Blossom algorithm” to solve a maximum weighted matching problem.