Question

How to generate a random number in a specific range with C++

Answer 1

#include <iostream>
#include <ctime> 

using namespace std;

int main()
{
	srand((unsigned)time(0));

	int n;
	int min = 3, max = 7;

	int range = (max - min) + 1;

	for (int i = 0; i < 30; i++) 
	{
		n = min + int(range * rand() / (RAND_MAX + 1.0));
		cout << n << endl;
	}

	return 0;
}


/*
run:

6
4
3
4
4
5
3
6
7
5
5
6
6
3
5
6
6
5
6
3
3
5
6
6
3
6
5
3
7
6

*/

 

70+ SQL courses for beginners and professionals