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题目链接:https://codeforces.com/problemset/problem/658/D Limak is a little polar bear. He doesn't have many toys and thus he often plays with polynomials. 阅读全文
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题目链接:https://vjudge.net/problem/POJ-3461 The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was 阅读全文
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题目链接:https://codeforces.com/contest/1262/problem/D2 D2. Optimal Subsequences (Hard Version) time limit per test 3 seconds memory limit per test 256 me 阅读全文
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题目链接:https://www.lydsy.com/JudgeOnline/problem.php?id=3098 098: Hash Killer II Time Limit: 5 Sec Memory Limit: 128 MBSec Special JudgeSubmit: 2561 Sol 阅读全文
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题目链接:http://codeforces.com/problemset/problem/652/F n ants are on a circle of length m. An ant travels one unit of distance per one unit of time. Init 阅读全文