/*  Program 7-8
 
    Flip a coin 6000 times  */
 
#include<stdlib.h>      /* needed for random number generators */
#include<time.h>        /* needed for time functions */
 
main()
{
    int face, flip, frequency[2] = {0};
 
    srand(time(NULL));  /* seeds the random number generator */
 
    for (flip = 1; flip <= 6000; flip++)
    {
     face = rand() % 2;
     ++frequency[face];
    }
 
    printf("            Frequency\n");
 
    for (face = 0; face < 2; face++)
    {
     if (face == 0)
      printf("Heads");
     else
      printf("Tails");
 
     printf("%16d\n", frequency[face]);
    }
}
 
/*   Sample Output
 
            Frequency
Heads            2999
Tails            3001
 
*/