| 6820 | BZOJ2820：YY的GCD | 0 | 0 | 0.000% |
| 7820 | BZOJ3820：虫逢 | 0 | 0 | 0.000% |
| 8820 | BZOJ4820：[Sdoi2017]硬币游戏 | 0 | 0 | 0.000% |
| 304300 | CF820A. Mister B and Book Reading | 0 | 0 | 0.000% |
| 304301 | CF820B. Mister B and Angle in Polygon | 0 | 0 | 0.000% |
| 304302 | CF820C. Mister B and Boring Game | 0 | 0 | 0.000% |
| 304303 | CF820D. Mister B and PR Shifts | 0 | 0 | 0.000% |
| 304304 | CF820E. Mister B and Beacons on Field | 0 | 0 | 0.000% |
| 309744 | CF1729A. Two Elevators | 0 | 8 | 0.000% |
| 309745 | CF1729B. Decode String | 0 | 5 | 0.000% |
| 309746 | CF1729C. Jumping on Tiles | 0 | 8 | 0.000% |
| 309747 | CF1729D. Friends and the Restaurant | 0 | 2 | 0.000% |
| 309748 | CF1729E. Guess the Cycle Size | 0 | 7 | 0.000% |
| 309749 | CF1729F. Kirei and the Linear Function | 0 | 8 | 0.000% |
| 309750 | CF1729G. Cut Substrings | 0 | 0 | 0.000% |
| 310337 | CF1820A. Yura's New Name | 0 | 0 | 0.000% |
| 310338 | CF1820B. JoJo's Incredible Adventures | 0 | 0 | 0.000% |
| 310339 | CF1820C. Constructive Problem | 0 | 0 | 0.000% |
| 310340 | CF1820D. The Butcher | 0 | 0 | 0.000% |
| 310341 | CF1820E. The Fox and the Complete Tree Traversal | 0 | 0 | 0.000% |
| 310342 | CF1820F. Misha and Apples | 0 | 0 | 0.000% |
| 402610 | GYM100820 A Airports | 0 | 0 | 0.000% |
| 402611 | GYM100820 B Butterfly Effect | 0 | 0 | 0.000% |
| 402612 | GYM100820 C Classy | 0 | 0 | 0.000% |
| 402613 | GYM100820 D Triangle | 0 | 0 | 0.000% |
| 402614 | GYM100820 E Excellence | 0 | 0 | 0.000% |
| 402615 | GYM100820 F Falling Blocks | 0 | 0 | 0.000% |
| 402616 | GYM100820 G Racing Gems | 0 | 0 | 0.000% |
| 402617 | GYM100820 H Hilbert Sort | 0 | 0 | 0.000% |
| 402618 | GYM100820 I Coverage | 0 | 0 | 0.000% |
| 402619 | GYM100820 J Olympics | 0 | 0 | 0.000% |
| 402620 | GYM100820 K Checkers | 0 | 0 | 0.000% |