I am using below code to generate random numbers in range...

int randomNumberWithinRange(int min,int max)
{
        int snowSize = 0;
        do
        {
            snowSize = rand()%max;
        }
        while( snowSize < min || snowSize > max );
        return snowSize;
    }

for(int i = 0; i < 10 ; i++)
  NSlog("@"%d",\t", randomNumberWithinRange(1,100));

If I quit my application and restart, same set of numbers are generated. How to generate different set of random numbers for every launching.