各大OJ快速传送门
- Luogu
- CodeForces
- POJ
- HDU
- 电子科大
- SPOJ
- ZOJ
- SinghuaOJ清华
- 上交OJ
- CDVS
- UOJ
- bzoj
- VjudgeOJ
- VjudgeOJ国内
- URAL
- Vjios
- Uva
- SGU
- NOI_OJ
- JOY_OJ
- LightOJ
- LibreOJ
- AcdreamOJ
- skyOJ
- 集训队OJ
- LYOIOJ
- 51nod
- AtCoder
- FZUOJ福州
- bzoj离线
- HUSTOJ
- CODEchef
- leetCode
- POI波兰
- NOI.AC
- WYS-duckOJ
- HJUDGE
- [CodeChef]
- [topCoder]
- [AtCode]
- SYZOJ
- 牛客网
OJ大集合(转载)
杂项：
http://poj.org/ POJ
http://acm.hdu.edu.cn/ HDU
https://www.luogu.org/ Luogu
http://codeforces.com/ CF
http://acm.uestc.edu.cn/#/ 电子科大
http://www.spoj.com/ SPOJ
http://acm.zju.edu.cn/onlinejudge/ ZOJ
https://dsa.cs.tsinghua.edu.cn/oj/ SinghuaOJ
https://acm.sjtu.edu.cn/OnlineJudge/ 上交OJ
http://www.codevs.cn/ CDVS
http://uoj.ac/ UOJ
http://www.lydsy.com/JudgeOnline/wttl/wttl.php bzoj
https://vjudge.net/ 通用oj
http://acm.timus.ru/ URAL
https://www.vijos.org/ VJ
https://uva.onlinejudge.org/ Uva
http://acm.sgu.ru/problem.php?contest=0&problem=100 SGU
https://uva.onlinejudge.org/external/12/p1214.pdf Uva的PDF
http://hihocoder.com/problemset HIHOj
http://cerc.hsin.hr/index.php?page=contest_data CERC
http://www.tsinsen.com/resources.page
http://bestcoder.hdu.edu.cn/contests/contest_list.php
https://hjudge.com/
https://judge-duck.online:10086/
http://noi.ac/contests
