摘要: 题目链接:https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3593 题意:输入n*4的矩阵,从4列中每个选一个数求有多少个和为0; 1 6 -45 22 42 -1 阅读全文
posted @ 2020-02-29 00:12 liyexin 阅读(172) 评论(0) 推荐(0)