摘要: 题意第一象限上有n#include#include#includeusing namespace std;typedef long long LL;const int SIZEN=100010;class BIT{public: int n; int s[SIZEN]... 阅读全文
posted @ 2015-06-26 11:59 cstdio 阅读(166) 评论(0) 推荐(0) 编辑