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Time Limit: 2 s
Memory Limit: 512 MB
Total points: 100
# 68. Designated Cities
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(日本語)
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The problem was used in the following contest:
The 18th Japanese Olympiad in Informatics Spring Training Camp (JOISC 2018/2019) Day 3
IOI 2021 中国国家队集训@宁波 Day 1
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