#include<cstdio>
#include<random>
int main(){
    std::random_device rd;
    std::mt19937 gen(rd());
    std::uniform_int_distribution<> dis(33, 126);
        printf("%c",dis(gen));
    return 0;
}

HAHA

的确“万能”

e……

#include <bits/stdc++.h>
using namespace std;
int main()
{
    for (long long i=1;;i++)
    {
    	srand(time(0));
		long long x=rand();
		cout << x*i;
    }
    return 0;
}

C++

srand(time(0));
int x=rand();
cout<<x;

就懒得写头文件了