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题目描述 Farmer John's N (1 <= N <= 100,000) cows are lined up in a row and numbered 1..N. The cows are conducting another one of their strange protests, 阅读全文
posted @ 2018-03-19 15:55
planche
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http://codeforces.com/problemset/problem/946/D Ivan is a student at Berland State University (BSU). There are n days in Berland week, and each of thes 阅读全文
posted @ 2018-03-19 15:49
planche
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