摘要: #include <bits/stdc++.h> using namespace std; const int maxn = 2e5 + 5; typedef long long ll; struct Node { int l,r; ll val; }sgt[maxn*40]; //? 40 = 2 阅读全文
posted @ 2022-11-08 20:07 羊扬羊 阅读(21) 评论(0) 推荐(0)