Problems
| Problem |
|---|
| A 签到题(sign) |
| B 大根堆(heap) |
| C 抽卡(card) |
| D 玩游戏(game) |
Submissions
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Contest Clarifications
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| Problem |
|---|
| A 签到题(sign) |
| B 大根堆(heap) |
| C 抽卡(card) |
| D 玩游戏(game) |