generating random number

raju8438 (11)
Hi.. I need to generate a 5 digit random number on unix env., i have tried with rand() but it is giving same value for each time i run my binary. i tried with srand() as well but it is giving same value for same second.. Can u please suggest any alternative way to get 5 digit random number...?
Softrix (704)
Have you used srand and set the seed using the system time?
raju8438 (11)
Yes i tried then im getting same value for single second

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for(i =0; i< 10;i ++)
{
srand(time(NULL));
printf("%d \n", rand());
}


in this case some times im getting same value twice..
Last edited on
Softrix (704)

Mine works fine, not getting same numbers.

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#include <iostream>
#include <time.h>
using namespace std;

int main()
{

	int result;

	srand(time(0));

	for (int i = 1; i <= 10; i++)
	{
		result = rand() % 10 + 1;
		cout << "Number " << i << " was " << result << endl;
	}

	return 0;

}
Softrix (704)

dont put the srand in the loop.

raju8438 (11)
OK Thanks.. let me try
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