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链接： https://codeforces.com/contest/1281/problem/B 题意： Your friend Jeff Zebos has been trying to run his new online company, but it's not going very we 阅读全文
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链接： https://codeforces.com/contest/1282/problem/C 题意： Petya has come to the math exam and wants to solve as many problems as possible. He prepared and 阅读全文
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链接： https://codeforces.com/contest/1282/problem/B2 题意： This is the hard version of this problem. The only difference is the constraint on k — the numb 阅读全文
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链接： https://codeforces.com/contest/1282/problem/A 题意： Polycarp lives on the coordinate axis Ox and travels from the point x=a to x=b. It moves uniform 阅读全文
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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