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【原题】 Generous sponsors of the olympiad in which Chloe and Vladik took part allowed all the participants to choose a prize for them on their own. Chris 阅读全文
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【原题】 Problem Description It is well known that Keima Katsuragi is The Capturing God because of his exceptional skills and experience in ''capturing'' 阅读全文
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【原题】 You are given a garland consisting of nn lamps. States of the lamps are represented by the string ss of length nn. The ii-th character of the str 阅读全文
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【原题】 题目描述 The Byteotian Cave is composed of nnn chambers and n−1n-1n−1 corridors that connect them. For every pair of chambers there is unique way to 阅读全文
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【原题】 Description Rain has pummeled the cows' field, a rectangular grid of R rows and C columns (1 <= R <= 50, 1 <= C <= 50). While good for the grass, 阅读全文