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PKU v. THU (Finals)
Time Limit: 4 s
Memory Limit: 512 MB
Total points: 100
Hackable ✓
# 3264. 相逢是问候
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The problem was used in the following contest:
2017 六省联合省队选拔 Day 1
官方测试数据中第 $8$ 个测试点与第 $11$ 个测试点不满足 $0 < c$,这两个测试点的数据被手动修正。
官方测试数据中第 $9$ 个测试点有误,这个测试点的数据被重新生成。
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