摘要：
#1388 : Periodic Signal 描述 Profess X is an expert in signal processing. He has a device which can send a particular 1 second signal repeatedly. The si 阅读全文
摘要：
Triple Sums You're given a sequence s of N distinct integers.Consider all the possible sums of three integers from the sequence at three different ind 阅读全文
摘要：
题目链接：点这里 题意: 给你一个矩阵R*C，n个点，与给的的n个点同一列同一行，同一条主对角线上的点都被染黑 问你最后有多少个点没有被染黑 题解： 把每一列每一行没有被染黑的x,y找出来，其任意组合起来是没这种情况下的答案（同一条主对角线上的点都被染黑） 对于 x - y，我们可以拿来判断两个点是 阅读全文
摘要：
A * B Problem Plus Problem Description Calculate A * B. Input Each line will contain two integers A and B. Process to end of file.Note: the length of 阅读全文
摘要：
3-idiots Problem Description King OMeGa catched three men who had been streaking in the street. Looking as idiots though, the three men insisted that 阅读全文