摘要: 7-1 Square Friends (20 分) 时间限制:400 ms 内存限制:64 MB For any given positive integer n, two positive integers A and B are called Square Friends if by attac 阅读全文
posted @ 2021-04-14 17:07 雪上空留马行处 阅读(2914) 评论(3) 推荐(3) 编辑