/* teacher implementation of strlen, as the student used the library */
int strlen(int str[]) {
  for (int i = 0; 1; i++) {
    if (str[i] == 0) return i;
  }
}

void mystrcpy(int x[], int y[])
{
  int len = strlen(x);
  for(int i=0 ; i < len ; i++){
    x[i] = y[i];
    len = strlen(x);
  }
}

/* original:
void mystrcpy(int x[], int y[])
{
  for(int i=0 ; i < strlen(x) ; i++){
    x[i] = y[i];
  }
}
*/
