#include <stdio.h>
#include <stdlib.h>
#include <time.h>

// preferred method for defining array size:
#define MAXDICE 10

/* Bug
   can be induced, if we change the above line to:
   #define MAXDICE 9
*/

/* Solution:
In the "for" line we broke the preferred method 
of using array sizes. 
  for (i=0; i<MAXDICE; i++) {...}
*/

/* What happend?
When the array size was 9, 
dice[9] referred to the variable i.
The rand function overwrote i. (1-6)
*/


int main(void) {
  srand(12345689); // random number generator initialization (seed)
                   // same seed ==> same sequence
  srand(time(0));  // initialize with system time
                   // ! resolution: 1 s

  int dice[MAXDICE]; // array to store dice rolls
  
  int i;
  
  for (i=0; i<10; i++) {
    dice[i] = rand() % 6 +1;   // :) http://xkcd.com/221/
    /*// Help:
    // maybe this will help to find the bug:
    printf("\n[i=%d] ", i);
    */

    printf("%d, ", dice[i]);
  }
  printf("\n");
  return 0;
}