摘要: 1 # include<iostream> 2 # include<cstring> 3 using namespace std; 4 const int N = 2e5 + 10; 5 6 struct node { 7 int l, r; 8 int v; 9 } tr[4 * N]; /*存树 阅读全文
posted @ 2022-02-27 22:22 empty_y 阅读(52) 评论(0) 推荐(0)