| Problem ID | Title | Solved | Submit | 正确率 |
|---|---|---|---|---|
| 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% |