| 4392 | 兔子与兔子 | 9 | 12 | 75.000% |
| 4393 | 回文子串的最大长度 | 4 | 21 | 19.048% |
| 4394 | 后缀数组 | 3 | 5 | 60.000% |
| 4395 | 周期 | 6 | 16 | 37.500% |
| 4396 | 前缀统计 | 5 | 12 | 41.667% |
| 4397 | 最大异或对 | 12 | 21 | 57.143% |
| 4398 | 最长异或值路径 | 6 | 10 | 60.000% |
| 4399 | 超市 | 5 | 12 | 41.667% |
| 4400 | 序列 | 3 | 4 | 75.000% |
| 4401 | 数据备份 | 3 | 5 | 60.000% |
| 4402 | 合并果子 | 3 | 3 | 100.000% |
| 4403 | 荷马史诗 | 2 | 3 | 66.667% |
| 4404 | 喝可乐 | 51 | 103 | 49.515% |
| 4405 | 三个小桶 | 29 | 162 | 17.901% |
| 4406 | 构造B数组 | 3 | 7 | 42.857% |
| 4407 | 三元整数 | 48 | 72 | 66.667% |
| 4408 | 数字进制 | 31 | 82 | 37.805% |
| 4409 | 数组重排 | 15 | 50 | 30.000% |
| 4410 | 上船 | 47 | 56 | 83.929% |
| 4412 | Changeable Y | 29 | 80 | 36.250% |
| 4413 | Agent Y | 4 | 21 | 19.048% |
| 4414 | Weapon Selection | 2 | 15 | 13.333% |
| 4415 | Clean M | 10 | 33 | 30.303% |
| 4416 | 消灭敌人 | 21 | 115 | 18.261% |
| 4417 | 树的深搜 | 2 | 4 | 50.000% |
| 4418 | 12强赛 | 19 | 42 | 45.238% |
| 4419 | 方格填数 | 9 | 30 | 30.000% |
| 4420 | Average of Two Numbers | 16 | 46 | 34.783% |
| 4421 | Sum Them | 5 | 26 | 19.231% |
| 4422 | Not the Only Tree | 1 | 1 | 100.000% |
| 4423 | 最大的数 | 1 | 14 | 7.143% |
| 4424 | 洞穴探宝 | 0 | 0 | 0.000% |
| 4425 | Circle Intersection | 0 | 0 | 0.000% |
| 4426 | 戴森球计划 | 0 | 0 | 0.000% |
| 4427 | String Set | 0 | 0 | 0.000% |
| 4428 | 双排积木 | 0 | 0 | 0.000% |
| 4429 | 2020 | 4 | 5 | 80.000% |
| 4430 | 2020 vs 2018 | 2 | 2 | 100.000% |
| 4431 | Absolute Difference Equation | 0 | 0 | 0.000% |
| 4432 | String Commutativity | 0 | 0 | 0.000% |
| 4433 | Make Rounddog Very Happy | 0 | 0 | 0.000% |
| 4434 | 抄板子 | 0 | 0 | 0.000% |
| 4435 | 奇矩阵 | 4 | 8 | 50.000% |
| 4436 | 矩形并 | 0 | 0 | 0.000% |
| 4437 | 共线点 | 2 | 6 | 33.333% |
| 4438 | Minimum Spanning Tree | 0 | 0 | 0.000% |
| 4439 | Spanning Trees | 0 | 0 | 0.000% |
| 4440 | Line | 18 | 45 | 40.000% |
| 4441 | 判断 | 33 | 50 | 66.000% |
| 4442 | 构造 | 16 | 61 | 26.230% |