摘要: trie 树思想运用到主席树上 "orz" cpp include include using namespace std; int n, m, a[200005], cnt, rot[200005], bb, xx, uu, vv; struct Node{ int l, r, sum; }nd[ 阅读全文
posted @ 2018-04-18 18:46 poorpool 阅读(177) 评论(0) 推荐(0)