文章浏览阅读191次。DescriptionThere arenpeople standing in a row. And There aremnumbers, 1.2...m. Every one should choose a number. But if two persons standing adjacent to each other choose the same number, th..._choosing数组的必要性...
文章浏览阅读496次。AtCoder Regular Contest 149 - A - Repdigit Number - 题解You are given positive integers N and M. Find the maximum positive integer X that satisfies all of the following conditions.X is a positive integer less than 10 N , and all digits in the decimal re_a - repdigit numb......
文章浏览阅读1.5w次,点赞6次,收藏25次。SQL Server一、ROW_NUMBER()功能: 简单的说row_number()从1开始,为每一条分组记录返回一个数字。ROW_NUMBER() OVER (ORDER BY xlh DESC) 是先把xlh列降序,再为降序以后的每条xlh记录返回一个序号。ROW_NU......