#include<bits/stdc++.h> usingnamespace std; //#define int long long inlineintread(){int x=0,f=1;char ch=getchar(); while(ch<'0'|| ch>'9'){if(ch=='-')f=-1;ch=getchar();}while(ch>='0'&&ch<='9'){ x=(x<<1)+(x<<3)+(ch^48);ch=getchar();}return x*f;} #define Z(x) (x)*(x) #define pb push_back //mt19937 rand(time(0)); //mt19937_64 rand(time(0)); //srand(time(0)); //#define N //#define M //#define mo int n, m, i, j, k, T; int l, r; vector<int>v1, v2, G;
intR(){ // int 范围内随机数 returnrand()|(rand()<<15); }