| 5850 | BZOJ1850：Submatrix | 0 | 0 | 0.000% |
| 6850 | BZOJ2850：巧克力王国 | 0 | 0 | 0.000% |
| 7850 | BZOJ3850：ZCC Loves Codefires | 0 | 0 | 0.000% |
| 8850 | BZOJ4850：[Jsoi2016]灯塔 | 0 | 0 | 0.000% |
| 304453 | CF850A. Five Dimensional Points | 0 | 0 | 0.000% |
| 304454 | CF850B. Arpa and a list of numbers | 0 | 0 | 0.000% |
| 304455 | CF850C. Arpa and a game with Mojtaba | 0 | 0 | 0.000% |
| 304456 | CF850D. Tournament Construction | 0 | 0 | 0.000% |
| 304457 | CF850E. Random Elections | 0 | 0 | 0.000% |
| 304458 | CF850F. Rainbow Balls | 0 | 0 | 0.000% |
| 310118 | CF1785A. Monsters (easy version) | 0 | 0 | 0.000% |
| 310119 | CF1785B. Letter Exchange | 0 | 0 | 0.000% |
| 310120 | CF1785C. Monsters (hard version) | 0 | 0 | 0.000% |
| 310121 | CF1785D. Wooden Spoon | 0 | 0 | 0.000% |
| 310122 | CF1785E. Infinite Game | 0 | 0 | 0.000% |
| 310123 | CF1785F. Minimums or Medians | 0 | 0 | 0.000% |
| 310124 | CF1786A1. Non-alternating Deck (easy version) | 0 | 0 | 0.000% |
| 310125 | CF1786A2. Alternating Deck (hard version) | 0 | 0 | 0.000% |
| 310126 | CF1786B. Cake Assembly Line | 0 | 0 | 0.000% |
| 310127 | CF1786C. Monsters (easy version) | 0 | 0 | 0.000% |
| 310128 | CF1786D. Letter Exchange | 0 | 0 | 0.000% |
| 310129 | CF1786E. Monsters (hard version) | 0 | 0 | 0.000% |
| 310130 | CF1786F. Wooden Spoon | 0 | 0 | 0.000% |
| 310547 | CF1850A. To My Critics | 0 | 5 | 0.000% |
| 310548 | CF1850B. Ten Words of Wisdom | 0 | 6 | 0.000% |
| 310549 | CF1850C. Word on the Paper | 0 | 5 | 0.000% |
| 310550 | CF1850D. Balanced Round | 0 | 6 | 0.000% |
| 310551 | CF1850E. Cardboard for Pictures | 0 | 5 | 0.000% |
| 310552 | CF1850F. We Were Both Children | 0 | 2 | 0.000% |
| 310553 | CF1850G. The Morning Star | 0 | 2 | 0.000% |
| 310554 | CF1850H. The Third Letter | 0 | 4 | 0.000% |