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PKU v. THU (Preliminary Round 2)
Time Limit: 1 s
Memory Limit: 512 MB
Total points: 100
# 7367. 群岛
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The problem was used in the following contest:
2021 年广东省重点中学信息学邀请赛 (GDKOI 2021) 提高组 第二试
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