随笔分类 -  未解

摘要：推荐链接:http://www.myexception.cn/other/1718283.html 阅读全文

摘要：A:DESCRIPTION Eric has an array of integers a1,a2,...,ana1,a2,...,an. Every time, he can choose a contiguous subsequence of length kk and increase eve 阅读全文

摘要：Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up 阅读全文

摘要：Description Two soldiers are playing a game. At the beginning first of them chooses a positive integer n and gives it to the second soldier. Then the 阅读全文

摘要：题目链接：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1141 阅读全文

摘要：找规律。 首先令n=sqrt(s)，上取整。讨论当n为偶数时，若n*n-s<n则x=n，y=n*n-s+1否则x=-n*n+2*n+s-1，y=n;如果n为奇数，交换x，y即可，对称的。 ***************************************************** 阅读全文

摘要：AC代码： Wa代码： 很搞不懂，谁来解释一下 if else 1号 和 if else2号 的区别，~~~~(>_<)~~~~ 阅读全文