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PKU v. THU (Preliminary Round 2)
Time Limit: 3 s
Memory Limit: 2048 MB
# 5684. 拧螺丝
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Custom Test
The problem was used in the following contest:
2023 清华大学学生程序设计竞赛暨高校邀请赛(THUPC 2023)初赛
Time Limit: 2s → 3s.
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