/*** You must define these functions according to these prototypes 
     poker_hands.c ***/

int royal_flush (CARD_T hand []);
int straight_flush (CARD_T hand []);
int n_of_a_kind (CARD_T hand [], int n);
int full_house (CARD_T hand []);
int flush (CARD_T hand []);
int straight (CARD_T hand []);
int two_pair (CARD_T hand []);
void high_card (CARD_T hand [], CARD_T *card);