Question

7.12 (Card Shuffling and Dealing) Modify the program in Fig. 7.24 so that the card-dealing function deals a five-card poker hand. Then write the following additional functions:

a) Determine whether the hand contains a pair.

b) Determinewhetherthehandcontainstwopairs.

c) Determine whether the hand contains three of a kind (e.g., three jacks).

d) Determinewhetherthehandcontainsfourofakind(e.g.,fouraces).

e) Determine whether the hand contains a flush (i.e., all five cards of the same suit).

f) Determine whether the hand contains a straight (i.e., five cards of consecutive face values).

7.13 (Project: Card Shuffling and Dealing) Use the functions developed in Exercise 7.12 to write a program that deals two five-card poker hands, evaluates each, and determines which is the better hand.

The code to figure 7.24 is:

#include

#include

#include

#define SUITS 4

#define FACES 13

#define CARDS 52

//prototypes

void shuffle(unsigned int wDeck[][FACES]); //shufling modifies wDeck

void deal(unsigned int wDeck[][FACES], const char *wFace[], const char *wSuit[]); //dealing doesn't modify arrays

int main()

{

//initialize suit array

const char *suit[SUITS] = {"Hearts", "Diamonds", "Clubs", "Spades"};

  

//initialize face array

const char *face[FACES] = {"Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King"};

  

//initialize deck array

unsigned int deck[SUITS][FACES] = {0};

  

srand(time(NULL)); //seed random-number generator

  

shuffle(deck);

deal(deck, face, suit);

}

void shuffle(unsigned int wDeck[][FACES])

{

size_t row; //row #

size_t column; //column #

size_t card; //counter

  

//for each of the cards, choose slot of deck randomly

for (card = 1; card <= CARDS; ++card)

{

//choose new random location until unoccupied slot found

do

{

row = rand() % SUITS;

column = rand() % FACES;

} while(wDeck[row][column] != 0);

  

//place card # in chosen slot of deck

wDeck[row][column] = card;

}

}

//deal cards in deck

void deal(unsigned int wDeck[][FACES], const char *wFace[], const char *wSuit[])

{

size_t card; //card counter

size_t row; //row counter

size_t column; //column counter

  

//deal each of the cards

for(card = 1; card <= CARDS; ++card)

{

for(row = 0; row < SUITS; ++row)

{

for(column = 0; column < FACES; ++column)

{

//if slot contains current card, display card

if (wDeck[row][column] == card)

{

printf("%5s of %-8s\n", wFace[column], wSuit[row], card % 2 == 0 ? '\n' : '\t');

}

}

}

}

}

Answer 1