int mystrlen(int trg[]){
  int i, len = 0;

  for(i = 0; trg[i] != 0; i++)
    len++;

  return len;
}

/* original
int mystrlen(char trg[]){
  int i, len = 0;

  for(i = 0; trg[i] != '\0'; i++)
    len++;

  return len;
}
*/
