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E. Alyona and Triangles 题目连接： http://codeforces.com/contest/682/problem/E Description You are given n points with integer coordinates on the plane. Po 阅读全文
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D. Alyona and Strings 题目连接： http://www.codeforces.com/contest/682/problem/D Description After returned from forest, Alyona started reading a book. She 阅读全文
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C. Alyona and the Tree 题目连接： http://www.codeforces.com/contest/682/problem/C Description Alyona decided to go on a diet and went to the forest to get 阅读全文
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B. Alyona and Mex 题目连接： http://www.codeforces.com/contest/682/problem/B Description Someone gave Alyona an array containing n positive integers a1, a2 阅读全文
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A. Alyona and Numbers 题目连接： http://www.codeforces.com/contest/682/problem/A Description After finishing eating her bun, Alyona came up with two intege 阅读全文