| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 691 | THU20262B 遗迹信号 | 12 / 123 | 4 | |
| 270 | cacc20251A 报数游戏 | 69 / 135 | 1 | |
| 272 | cacc20251C 心算能力 | 16 / 301 | 4 | |
| 277 | cacc20252B Bob 的旅行计划 | 2 / 50 | 9 | |
| 278 | cacc20252C Charlie 的三点权树 | 7 / 50 | 6 | |
| 435 | ecnu20171F 送分题 | 4 / 33 | 4 | |
| 438 | ecnu20172C 排队买夜宵 | 4 / 8 | 1 | |
| 444 | ecnu20173C 我认识你 | 2 / 7 | 2 | |
| 446 | ecnu20173C2 我认识你 - 加强版 | 1 / 13 | 4 | |
| 448 | ecnu20173F 又是 GCD | 1 / 5 | 4 |
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