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地址: 题目: B. Divisiblity of Differences time limit per test 1 second memory limit per test 512 megabytes input standard input output standard output B. 阅读全文
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地址:http://codeforces.com/contest/876/problem/C 题目: C. Classroom Watch time limit per test 1 second memory limit per test 512 megabytes input standard 阅读全文
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地址:http://codeforces.com/contest/876/problem/D 题目: D. Sorting the Coins time limit per test 1 second memory limit per test 512 megabytes input standar 阅读全文