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Rainbow 6 is a very popular game in colleges. There are 2 teams, each having some members and the 2 teams play some matches against each other. The te 阅读全文
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ps：感觉比昨天晚上的华师题目质量高一点，至少emmm，题面没有那么多bug。 下面忽略了水题，只给出我觉得有价值的几个题目的题解和代码： 【C:神山神石】： 题意： 每一天，Wells可以喂神山一个神石，使得神山的高度变为原高度乘上神石的能力值，或者使得所有的神石能力值+1。第 0 天时，所有神石 阅读全文
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Problem description. The Fibonacci numbers defined as f(n) = f(n-1) + f(n-2) where f0 = 0 and f1 = 1. We define a function as follows D(n,x) = x + x^2 阅读全文
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You are given an array of size N. How many distinct arrays can you generate by swapping two numbers for exactly once? The two selected numbers can be 阅读全文
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Katniss Everdeen after participating in Hunger Games now wants to participate in NT Games (Number Theory Games). As she begins President Snow provides 阅读全文
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Dima adds letters s1, …, sn one by one to the end of a word. After each letter, he asks Misha to tell him how many new palindrome substrings appeared 阅读全文
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The northern part of the Pyramid contains a very large and complicated labyrinth. The labyrinth is divided into square blocks, each of them either fil 阅读全文
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A positive integer is called a palindrome if its representation in the decimal system is the same when read from left to right and from right to left. 阅读全文
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Misha and Dima are promising young scientists. They make incredible discoveries every day together with their colleagues in the Spilkovo innovative ce 阅读全文
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Do you think that magic is simple? That some hand-waving and muttering incomprehensible blubber is enough to conjure wonderful gardens or a fireball t 阅读全文