- active online contests
- codeforces (include gym, sgu)
- atcoder
- codechef (include snackdown)
- leetcode
- topcoder (include tco)
- usaco
- hdu (include bestcoder, astar)
- nowcoder
- huge problemsets
- 51nod
- lydsy
- poj
- hiho
- hackerrank
- projecteuler
- timus
- uoj
- uva
- zoj
- annual contest
- company: fhc/gcj/snackdown/tco
- university: icpc/ccpc
- high school: noi/poi/pa
- stale
- bestcoder
- lanqiao
- oj3rd
| OJ | Count |
|---|---|
| 51nod | 448 |
| buaa/oj3rd | 135 |
| codechef | 65 |
| codeforces (+gym, +sgu) | 1086 |
| hackerrank | 56 |
| hdu (+bestcoder) | 287 |
| lanqiao | 6 |
| leetcode | 3026 |
| loj | 29 |
| luogu | 56 |
| lydsy | 883 |
| openjudge | 7 |
| poj | 104 |
| projecteuler | 71 |
| spoj (+challenge, +tutorial) | 21 |
| timus | 22 |
| uoj | 23 |
| usaco | 54 |
| uvalive | 164 |
| zoj | 20 |
total: 6563
| Category | Count |
|---|---|
| *self | 39 |
| *Summer | 3 |
| *TDL | 22 |
*total: 64
*: updating in progress
high prior:
| Name | Type |
|---|---|
| atcoder | OJ |
| baidu/astar | Compete |
| google/codejam | Compete |
| google/kickstart | Compete |
| meta/hackercup | Compete |
| nowcoder | OJ |
| topcoder | OJ |
| yandex | Compete |
mid prior:
| Name | Type |
|---|---|
| cccc | Compete |
| csp | Compete |
| ipsc | Compete |
| kattis | OJ |
| oi | Compete |
| opencup | Compete |
| ptzcamp | Compete |
| poland | OJ |
| static | Materials |
| tool | Tools |
| training | Compete |
| uva | OJ |
| xcpc | Compete |
deprecated: acdream/codevs/cogs/contesthunter/hihocoder/ifrog/jisuanke/rqnoj/tsinsen/tyvj/vijos