随机数模板

#include<bits/stdc++.h>
using namespace std;
namespace rad{
    mt19937_64 R(time(0));
    inline int Rand(int l,int r){
        uniform_int_distribution<int> distribution(l,r);
        return distribution(R);
    }
}
using namespace rad;
int main(){
	printf("%d",Rand(1,100));
	return 0;
}