| 6400 | BZOJ2400：Spoj 839 Optimal Marks | 0 | 0 | 0.000% |
| 6839 | BZOJ2839：集合计数 | 1 | 1 | 100.000% |
| 7839 | BZOJ3839：[Pa2013]Dzialka | 0 | 0 | 0.000% |
| 8839 | BZOJ4839：[Neerc2016]Abbreviation | 0 | 0 | 0.000% |
| 304387 | CF839A. Arya and Bran | 0 | 0 | 0.000% |
| 304388 | CF839B. Game of the Rows | 0 | 0 | 0.000% |
| 304389 | CF839C. Journey | 0 | 0 | 0.000% |
| 304390 | CF839D. Winter is here | 0 | 0 | 0.000% |
| 304391 | CF839E. Mother of Dragons | 0 | 0 | 0.000% |
| 310012 | CF1772A. A+B? | 0 | 0 | 0.000% |
| 310013 | CF1772B. Matrix Rotation | 0 | 0 | 0.000% |
| 310014 | CF1772C. Different Differences | 0 | 0 | 0.000% |
| 310015 | CF1772D. Absolute Sorting | 0 | 0 | 0.000% |
| 310016 | CF1772E. Permutation Game | 0 | 0 | 0.000% |
| 310017 | CF1772F. Copy of a Copy of a Copy | 0 | 0 | 0.000% |
| 310018 | CF1772G. Gaining Rating | 0 | 0 | 0.000% |