| 5909 | BZOJ1909：Berth Allocation | 0 | 0 | 0.000% |
| 6909 | BZOJ2909：Bipartite Numbers | 0 | 0 | 0.000% |
| 7909 | BZOJ3909：装箱问题 | 0 | 0 | 0.000% |
| 8909 | BZOJ 4909 | 0 | 0 | 0.000% |
| 304765 | CF909A. Generate Login | 0 | 0 | 0.000% |
| 304766 | CF909B. Segments | 0 | 0 | 0.000% |
| 304767 | CF909C. Python Indentation | 0 | 0 | 0.000% |
| 304768 | CF909D. Colorful Points | 0 | 0 | 0.000% |
| 304769 | CF909E. Coprocessor | 0 | 0 | 0.000% |
| 304770 | CF909F. AND-permutations | 0 | 0 | 0.000% |
| 310847 | CF1899A. Game with Integers | 0 | 5 | 0.000% |
| 310848 | CF1899B. 250 Thousand Tons of TNT | 0 | 5 | 0.000% |
| 310849 | CF1899C. Yarik and Array | 0 | 10 | 0.000% |
| 310850 | CF1899D. Yarik and Musical Notes | 0 | 6 | 0.000% |
| 310851 | CF1899E. Queue Sort | 0 | 5 | 0.000% |
| 310852 | CF1899F. Alex's whims | 0 | 4 | 0.000% |
| 310853 | CF1899G. Unusual Entertainment | 0 | 2 | 0.000% |
| 310912 | CF1909A. Distinct Buttons | 0 | 0 | 0.000% |
| 310913 | CF1909B. Make Almost Equal With Mod | 0 | 0 | 0.000% |
| 310914 | CF1909C. Heavy Intervals | 0 | 0 | 0.000% |
| 310915 | CF1909D. Split Plus K | 0 | 0 | 0.000% |
| 310916 | CF1909E. Multiple Lamps | 0 | 0 | 0.000% |
| 310917 | CF1909F1. Small Permutation Problem (Easy Version) | 0 | 0 | 0.000% |
| 310918 | CF1909F2. Small Permutation Problem (Hard Version) | 0 | 0 | 0.000% |
| 310919 | CF1909G. Pumping Lemma | 0 | 0 | 0.000% |
| 310920 | CF1909H. Parallel Swaps Sort | 0 | 0 | 0.000% |
| 310921 | CF1909I. Short Permutation Problem | 0 | 0 | 0.000% |