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ID Problem Show tags Hide tags AC / Tried Difficulty
4541 A0634   围魏救赵 13 / 85 8
4589 MQC01005   蒙青创安排教室1 8 / 37 5
4566 MQC02002   跳房子 27 / 253 5
4567 MQC02003   寻找第k小的数对 23 / 69 6
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