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链接： https://codeforces.com/contest/1271/problem/E 题意： At first, let's define function f(x) as follows: f(x)={x2x−1if x is evenotherwise We can see tha 阅读全文
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链接： https://codeforces.com/contest/1271/problem/D 题意： You play a strategic video game (yeah, we ran out of good problem legends). In this game you con 阅读全文
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链接： https://codeforces.com/contest/1271/problem/C 题意： The map of the capital of Berland can be viewed on the infinite coordinate plane. Each point wit 阅读全文
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链接： https://codeforces.com/contest/1271/problem/B 题意： There are n blocks arranged in a row and numbered from left to right, starting from one. Each bl 阅读全文
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链接： https://codeforces.com/contest/1271/problem/A 题意： A new delivery of clothing has arrived today to the clothing store. This delivery consists of a 阅读全文
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链接： https://codeforces.com/contest/1269/problem/D 题意： You are given a Young diagram. Given diagram is a histogram with n columns of lengths a1,a2,…,an 阅读全文
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链接： https://codeforces.com/contest/1269/problem/C 题意： You are given an integer x of n digits a1,a2,…,an, which make up its decimal notation in order f 阅读全文
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链接： https://codeforces.com/contest/1269/problem/B 题意： You are given a positive integer m and two integer sequence: a=[a1,a2,…,an] and b=[b1,b2,…,bn]. 阅读全文
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链接： https://codeforces.com/contest/1269/problem/A 题意： Let's call a positive integer composite if it has at least one divisor other than 1 and itself. 阅读全文