摘要: #include #include using namespace std; const int N=1000010; int n,m; long long a[N],addv[N]; void pushdown(int o,int len){ if(addv[o]){ addv[o*2]+=addv[o]; addv[o*2+1]+=addv[o]... 阅读全文
posted @ 2017-10-08 20:44 wqtnb_tql_qwq_%%% 阅读(140) 评论(0) 推荐(0)