#include <stdio.h>

int main(int argc, char* argv[]) {

  double y[10];
  double x;
  int i;

  y[0] = 3.1415926;
  y[1] = 2.71828;
  y[2] = 0;
  y[10] = 666;   // out of bound, the programmer must check for it!
                 // the compiler won't complain, not even the execution
  x = y[10];

  for (i = 0; i <= 10; i ++) {
    printf("y[%d] = %f\n", i, y[i]);
  }

  return 0;
}