hydro-dev / Hydro

Hydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)

wzj52501 / awesome-competitive-olympiad-algorithms

Original algorithmic contest problems and lecture notes — NOIP to NOI & ACM-ICPC level

zhblue / hustoj

Popular Simple Open Source Online Judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training, with easy installation. 简单实用的开源OJ系统