how to make a random number in c++
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
int main() {
srand(time(NULL) );
const char arrayNum[7] = {'0', '1', '2', '3', '4', '5', '6'};
int RandIndex = rand() % 7;
cout<<RandIndex<<endl;
return 0;
}