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PKU v. THU (Preliminary Round 2)
Time Limit: 6 s
Memory Limit: 1024 MB
Total points: 100
# 4009. 简单题
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The problem was used in the following contest:
2022 浙江省队选拔赛 Day 1 (ZJOI 2022 Day 1)
This problem is prepared by
suika_predator
.
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