| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 20140 | 20140 A:自动贩卖机 | 0 / 0 | (None) | |
| 20141 | 20141 C:迷宫逃出 | 0 / 0 | (None) | |
| 20142 | 20142 D:最短时间 | 0 / 0 | (None) | |
| 20143 | 20143 E:远古石门机关 | 0 / 0 | (None) |
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