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A. GCD Table time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A. GCD Table time limit per 阅读全文
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题意:已知n个数,第i个为ci,给定一个数x mod ci的结果,再给点一个k,问能不能知道x mod k的值? 分析:刚看题目的我一脸蒙蔽,对题意有点不理解,能的情况似乎有很多,我该从哪里下手呢? 先从不能的情况来看,可以知道,如果不能知道x mod k的值,当且仅当有两个解x1,x2, x1 ≡ 阅读全文
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D. Longest Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Longest Subseq 阅读全文
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Holedox Moving Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 16980 Accepted: 4039 Description During winter, the most hungry and severe t 阅读全文