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链接： https://codeforces.com/contest/1263/problem/E 题意： The development of a text editor is a hard problem. You need to implement an extra module for br 阅读全文
posted @ 2019-12-17 12:48
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链接： https://codeforces.com/contest/1263/problem/D 题意： One unknown hacker wants to get the admin's password of AtForces testing system, to get problems 阅读全文
posted @ 2019-12-17 12:46
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链接： https://codeforces.com/contest/1263/problem/C 题意： On the well known testing system MathForces, a draw of n rating units is arranged. The rating wi 阅读全文
posted @ 2019-12-17 12:43
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链接： https://codeforces.com/contest/1263/problem/B 题意： A PIN code is a string that consists of exactly 4 digits. Examples of possible PIN codes: 7013, 阅读全文
posted @ 2019-12-17 12:40
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链接： https://codeforces.com/contest/1263/problem/A 题意： You have three piles of candies: red, green and blue candies: the first pile contains only red c 阅读全文
posted @ 2019-12-17 12:13
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