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| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 4271 | BJSC078 车厢重组 | 0 / 0 | (None) | |
| 4272 | BJSC079 青牛理牌 | 0 / 0 | (None) | |
| 4273 | BJSC080 青牛选奖品 | 0 / 0 | (None) |
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