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题目链接： Bellovin Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Problem Description Peter has a sequence a1,a2,...,a 阅读全文
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题目链接： Aaronson Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Problem Description Recently, Peter saw the equation 阅读全文
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题目链接： GCD Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description Give you a sequence of N(N≤100,000) in 阅读全文
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题目链接： E. Connecting Universities time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output time li 阅读全文
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题目链接： D. As Fast As Possible time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output time limit p 阅读全文
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题目链接： C. They Are Everywhere time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output time limit 阅读全文
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题目链接： B. Cells Not Under Attack 题意： n*n的棋盘,现在放m个棋子,放一个棋子这一行和这一列就不会under attack了,每次放棋子回答有多少点还可能under attack; 思路：对行和列标记; AC代码： 阅读全文
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题目链接： A. Cards 题意： 问两个数的和相同,怎么组合; AC代码： 阅读全文