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C - 白昼夢 / Daydream Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement You are given a string S consisting of lowercase Engl 阅读全文
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An Ordinary Game Time limit : 2sec / Memory limit : 256MB Score : 500 points Problem Statement There is a string s of length 3 or greater. No two neig 阅读全文
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Boxes and Candies Time limit : 2sec / Memory limit : 256MB Score : 300 points Problem Statement There are N boxes arranged in a row. Initially, the i- 阅读全文
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Gone Fishing John is going on a fising trip. He has h hours available (1 ≤ h ≤ 16), and there are n lakes in the area (2 ≤ n ≤ 25) all reachable along 阅读全文