poker

#include<stdbool.h>
#include<stdio.h>
#include<stdlib.h>


#define NUM_RANKS 13
#define NUM_SUTTS 4
#define NUM_CARDS 5




/*prototypes*/
void read_cards(int num_in_rank[],int num_in_suit[]);
void analyze_hand(int num_in_rank[],int num_in_suit[],bool*straight,bool*flush,bool*four,bool*three,int*pairs);
void print_result(bool straight,bool flush,bool four,bool three,int pairs);


/************************************************************
 * main:Calls read_cards,analyze_hand,and print_result      *
 *      repeatedly.                                         *
 ***********************************************************/
int main(void)
{
int num_in_rank[NUM_RANKS];
int num_in_suit[NUM_SUTTS];
bool straight,flush,four,three;
int pairs;


for(;;){
read_cards(num_in_rank,num_in_suit);
analyze_hand(num_in_rank,num_in_suit,&straight,&flush,&four,&three,&pairs);
print_result(straight,flush,four,three,pairs);


}
}
/************************************************************
 * read_cards:Read the cards into the external              *
 *            Variables num_in_rank and num_in_suit;        *
 *            checks for bad cards and duplicates cards.    *
 ***********************************************************/
void read_cards(int num_in_rank[NUM_RANKS],int num_in_suit[NUM_SUTTS])
{
bool card_exists[NUM_RANKS][NUM_SUTTS];
char ch,rank_ch,suit_ch;
int rank ,suit;
bool bad_card;
int cards_read=0;


for(rank=0;rank<NUM_RANKS;rank++){
num_in_rank[rank]=0;
for(suit=0;suit<NUM_SUTTS;suit++)
card_exists[rank][suit]=false;
}
for(suit=0;suit<NUM_SUTTS;suit++)
num_in_suit[suit]=0;


while(cards_read<NUM_CARDS){
bad_card=false;


printf("Enter a card:");


rank_ch=getchar();
switch(rank_ch){
case'0':          exit(EXIT_SUCCESS);
case'2':          rank=0;break;
case'3':          rank=1;break;
case'4':          rank=2;break;
case'5':          rank=3;break;
case'6':          rank=4;break;
case'7':          rank=5;break;
case'8':          rank=6;break;
case'9':          rank=7;break;
case't':case'T':  rank=8;break;
case'j':case'J':  rank=9;break;
case'q':case'Q':  rank=10;break;
case'k':case'K':  rank=11;break;
case'a':case'A':  rank=12;break;
default:          bad_card=true;


}


suit_ch=getchar();
switch(suit_ch){
case'c':case'C':suit=0;break;
case'd':case'D':suit=1;break;
case'h':case'H':suit=2;break;
case's':case'S':suit=3;break;
default:          bad_card=true;
}


while((ch=getchar())!='\n')
if (ch != ' ') bad_card = true;


if(bad_card)
printf("Bad card;ignore.\n");
else if(card_exists[rank][suit])
printf("Duplicate card;ignored.\n");
else{
  num_in_rank[rank]++;
num_in_suit[suit]++;
card_exists[rank][suit]=true;
cards_read++;
}


}
}


/************************************************************
* analyze_hand:Determines whether the hand contains a       *
*              straight ,a flush,four-of-a-kind,                                       *
*              and/or three-of-a-kind;determines the                *
*              number of pairs;stores the results into      *
*              the external variables straight,flush,       *
*              four,three,and pairs.                        *
************************************************************/


void analyze_hand(int num_in_rank[NUM_RANKS],int num_in_suit[NUM_SUTTS],bool*straight,bool*flush,bool*four,bool*three,int*pairs)
{
int num_consec=0;
int rank,suit;


*straight=false;
*flush=false;
*four=false;
*three=false;
*pairs=0;


/*check for flush*/
for (suit=0;suit<NUM_SUTTS;suit++)
if(num_in_suit[suit]==NUM_CARDS)
*flush=true;


/*check for straight*/
rank=0;
while(num_in_rank[rank]==0)rank++;
for(;rank<NUM_RANKS&&num_in_rank[rank]>0;rank++)
num_consec++;
if(num_consec==NUM_CARDS){
*straight=true;
return ;
}


/*check for 4-of-a-kind,3-of-a-kind,and pairs*/
for(rank=0;rank<NUM_RANKS;rank++){
if(num_in_rank[rank]==4)*four=true;
if(num_in_rank[rank]==3)*three=true;
if(num_in_rank[rank]==2)(*pairs)++;
}
}
/************************************************************
* print_reslut:prints the classification of the hand,       *
*              based on the values of the external          *
*              variable straight,flush,four, three,         *
*              and pairs                                    *
************************************************************/






void print_result(bool straight,bool flush,bool four,bool three,int pairs)
{
if(straight&&flush)printf("Straight flush");
else if(four)      printf("Four of a kind");
else if(three&&pairs==1)printf("Full house");
else if(flush)     printf("Flush");
else if(straight)  printf("Straight");
else if(three)     printf("Three of a kind");
else if(pairs==2)  printf("Two pairs");
else if(pairs==1)  printf("Pair");
else               printf("High card");


printf("\n\n");






}