叽里呱啦说什么呢?和我的线段树说去吧,这个放在hard一样能用喵,动态开点的线段树喵 #include<bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef unsigned long long ull; typedef __int128 i128; typedef pair<int,int> pii; typedef pair<ll,ll> pll; const int MOD = 1e9 + 7; const ll INF = 0...