| 5891 | BZOJ1891：丘比特的烦恼 | 0 | 0 | 0.000% |
| 6891 | BZOJ2891：匹配难题 | 0 | 0 | 0.000% |
| 7891 | BZOJ3891：[Usaco2014 Dec]Piggy Back | 0 | 0 | 0.000% |
| 8891 | BZOJ4891：[Tjoi2017]龙舟 | 0 | 0 | 0.000% |
| 304670 | CF891A. Pride | 0 | 0 | 0.000% |
| 304671 | CF891B. Gluttony | 0 | 0 | 0.000% |
| 304672 | CF891C. Envy | 0 | 0 | 0.000% |
| 304673 | CF891D. Sloth | 0 | 0 | 0.000% |
| 304674 | CF891E. Lust | 0 | 0 | 0.000% |
| 310594 | CF1857A. Array Coloring | 0 | 0 | 0.000% |
| 310595 | CF1857B. Maximum Rounding | 0 | 0 | 0.000% |
| 310596 | CF1857C. Assembly via Minimums | 0 | 0 | 0.000% |
| 310597 | CF1857D. Strong Vertices | 0 | 0 | 0.000% |
| 310598 | CF1857E. Power of Points | 0 | 0 | 0.000% |
| 310599 | CF1857F. Sum and Product | 0 | 0 | 0.000% |
| 310600 | CF1857G. Counting Graphs | 0 | 0 | 0.000% |
| 310809 | CF1891A. Sorting with Twos | 0 | 0 | 0.000% |
| 310810 | CF1891B. Deja Vu | 0 | 0 | 0.000% |
| 310811 | CF1891C. Smilo and Monsters | 0 | 0 | 0.000% |
| 310812 | CF1891D. Suspicious logarithms | 0 | 0 | 0.000% |
| 310813 | CF1891E. Brukhovich and Exams | 0 | 0 | 0.000% |
| 310814 | CF1891F. A Growing Tree | 0 | 0 | 0.000% |
| 407764 | GYM102891 A Apples and Oranges | 0 | 0 | 0.000% |
| 407765 | GYM102891 B Sphinx | 0 | 0 | 0.000% |
| 407766 | GYM102891 C Elliptic-EX | 0 | 0 | 0.000% |
| 407767 | GYM102891 D Towers | 0 | 0 | 0.000% |
| 407768 | GYM102891 E Entanglement | 0 | 0 | 0.000% |
| 407769 | GYM102891 F Alarm Clocks | 0 | 0 | 0.000% |
| 407770 | GYM102891 G Silver Fences | 0 | 0 | 0.000% |
| 407771 | GYM102891 H Ant MRT | 0 | 0 | 0.000% |