摘要: #include #include #include #define ll long long #define N 100010 using namespace std; ll ans,mod; int n,m; struct tree { int l,r; int mul_,sum_; long long sum; }tr[N>1; build(kr||r>... 阅读全文
posted @ 2017-07-30 15:22 安月冷 阅读(127) 评论(0) 推荐(0) 编辑