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题目描述 Persona5 is a famous video game. In the game, you are going to build relationship with your friends. You have N friends and each friends have his 阅读全文
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题目描述 There are N boxes arranged in a circle. The i-th box contains Ai stones.Determine whether it is possible to remove all the stones from the boxes 阅读全文
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题目描述 A multi-digit column addition is a formula on adding two integers written like this: A multi-digit column addition is written on the blackboard, 阅读全文
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题目描述 Aoki loves numerical sequences and trees.One day, Takahashi gave him an integer sequence of length N, a1,a2,…,aN, which made him want to construc 阅读全文
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题目描述 Snuke lives in another world, where slimes are real creatures and kept by some people. Slimes come in N colors. Those colors are conveniently num 阅读全文