Question

How to generate 8 digit random number in C++

Answer 1

#include <iostream>
#include <cstdlib>
#include <ctime>

#define N 20

using namespace std;

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

	long x = 1000000;
	long y = 99999999;

	for (int i = 0; i < N; i++)
		cout << rand() % (y - x + 1) + x << endl;

	return 0;
}


/*
run:

1006861
1026962
1028290
1005225
1011076
1004660
1019278
1017646
1023865
1026884
1023305
1019065
1023196
1016906
1027308
1008373
1018623
1009311
1016315
1009886

*/

 

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