QUESTION # 54
In the card game poker, a hand consists of five cards and are
ranked, from lowest to highest, in the following way:
- High Card: Highest value
card.
- One Pair: Two cards of
the same value.
- Two Pairs: Two different
pairs.
- Three of a Kind: Three cards of
the same value.
- Straight: All cards are
consecutive values.
- Flush: All cards of
the same suit.
- Full House: Three of a
kind and a pair.
- Four of a Kind: Four cards of
the same value.
- Straight Flush: All cards are
consecutive values of same suit.
- Royal Flush: Ten, Jack,
Queen, King, Ace, in same suit.
The cards are valued in the order:
2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, Ace.
2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King, Ace.
If two players have the same ranked hands then the rank made up of
the highest value wins; for example, a pair of eights beats a pair of fives
(see example 1 below). But if two ranks tie, for example, both players have a
pair of queens, then highest cards in each hand are compared (see example 4
below); if the highest cards tie then the next highest cards are compared, and
so on.
Consider the following five hands dealt to two players:
|
Hand
|
|
Player
1
|
|
Player
2
|
|
Winner
|
|
1
|
|
5H
5C 6S 7S KD
Pair
of Fives
|
|
2C
3S 8S 8D TD
Pair
of Eights
|
|
Player
2
|
|
2
|
|
5D
8C 9S JS AC
Highest
card Ace
|
|
2C
5C 7D 8S QH
Highest
card Queen
|
|
Player
1
|
|
3
|
|
2D
9C AS AH AC
Three
Aces
|
|
3D
6D 7D TD QD
Flush
with Diamonds
|
|
Player
2
|
|
4
|
|
4D
6S 9H QH QC
Pair
of Queens
Highest card Nine |
|
3D
6D 7H QD QS
Pair
of Queens
Highest card Seven |
|
Player
1
|
|
5
|
|
2H
2D 4C 4D 4S
Full
House
With Three Fours |
|
3C
3D 3S 9S 9D
Full
House
with Three Threes |
|
Player
1
|
The file, poker.txt,
contains one-thousand random hands dealt to two players. Each line of the file
contains ten cards (separated by a single space): the first five are Player 1's
cards and the last five are Player 2's cards. You can assume that all hands are
valid (no invalid characters or repeated cards), each player's hand is in no
specific order, and in each hand there is a clear winner.
How many hands does Player 1 win?
SOLUTION # 54
#include<stdio.h>
void sort(int *arr,char*suit)
{
int i,j,n,flag,temp;
n=5;
for(i=1;i<n;i++)
{
flag=0;
for(j=0;j<n-i;j++)
if(arr[j]>arr[j+1])
{
flag=1;
temp=arr[j];
arr[j]=arr[j+1] ;
arr[j+1]=temp;
temp=suit[j];
suit[j]=suit[j+1] ;
suit[j+1]=temp;
}
if(flag==0)
break;
}
}
int inCaseOfTie(int*value1,int*value2)
{
int i=4;
while(value1[i]==value2[i])
i--;
if(value1[i]>value2[i])
return 1;
return 2;
}
int isSameSuit(char*suit)
{
int i;
for(i=0;i<4;i++)
if(suit[i]!=suit[i+1])
return 0;
return 1;
}
int isRoyalFlush(int *value,char*suit)
{
if(!isSameSuit(suit))
return 0;
if(value[0]==10 && value[0]==11 && value[0]==12
&& value[0]==13 && value[0]==14)
return 1;
return 0;
}
int isStraightFlush(int *value,char*suit)
{
if(!isSameSuit(suit))
return 0;
return isStraight(value,suit);
}
int isFourOfAKind(int *value)
{
if(value[0]==value[1] && value[0]==value[2] &&
value[0]==value[3])
return value[0];
if(value[1]==value[2] && value[1]==value[3] &&
value[1]==value[4])
return value[1];
return 0;
}
int isThreeOfAKind(int *value)
{
if(value[0]==value[1] && value[0]==value[2])
return value[0];
if(value[1]==value[2] && value[1]==value[3])
return value[1];
if(value[2]==value[3] && value[2]==value[4])
return value[2];
return 0;
}
int isTwoPairs(int*value)
{
if(value[0]==value[1])
{
if(value[2]==value[3])
return 123;
if(value[3]==value[4])
return 134;
}
if(value[1]==value[2] && value[3]==value[4])
return 1234;
return 0;
}
int isOnePair(int*value)
{
if(value[0]==value[1])
return value[0];
if(value[1]==value[2])
return value[1];
if(value[2]==value[3])
return value[2];
if(value[3]==value[4])
return value[3];
return 0;
}
int isFullHouse(int *value)
{
if(value[0]==value[1] && value[2]==value[3] && value[3]==value[4])
return value[2];
if(value[3]==value[4] && value[0]==value[1] && value[1]==value[2])
return value[2];
return 0;
}
int isFlush(char*suit)
{
return isSameSuit(suit);
}
int isStraight(int *value)
{
if(value[1]==value[0]+1 && value[2]==value[0]+2 &&
value[3]==value[0]+3 && value[4]==value[0]+4)
return 1;
return 0;
}
int whoWins(int*value1,char*suit1,int*value2,char*suit2)
{
int player1pair1,player1pair2,player2pair1,player2pair2,a,b,c,d;
if(isRoyalFlush(value1,suit1))
return 1;
if(isRoyalFlush(value2,suit2))
return 2;
if(isStraightFlush(value1,suit1) &&
!isStraightFlush(value2,suit2))
return 1;
if(!isStraightFlush(value1,suit1) &&
isStraightFlush(value2,suit2))
return 2;
if(isStraightFlush(value1,suit1) &&
isStraightFlush(value2,suit2))
return inCaseOfTie(value1,value2);
if(isFourOfAKind(value1) && !isFourOfAKind(value2))
return 1;
if(!isFourOfAKind(value1) && isFourOfAKind(value2))
return 2;
if(isFourOfAKind(value1) && isFourOfAKind(value2))
{
if(isFourOfAKind(value1)> isFourOfAKind(value2))
return 1;
if(isFourOfAKind(value1)< isFourOfAKind(value2))
return 2;
return inCaseOfTie(value1,value2);
}
if(isFullHouse(value1) && !isFullHouse(value2))
return 1;
if(!isFullHouse(value1) && isFullHouse(value2))
return 2;
if(isFullHouse(value1) && isFullHouse(value2))
{
if(isFullHouse(value1)> isFullHouse(value2))
return 1;
if(isFullHouse(value1)< isFullHouse(value2))
return 2;
return inCaseOfTie(value1,value2);
}
if(isFlush(suit1) && !isFlush(suit2))
return 1;
if(!isFlush(suit1) && isFlush(suit2))
return 2;
if(isFlush(suit1) && isFlush(suit2))
return inCaseOfTie(value1,value2);
if(isStraight(value1) && !isStraight(value2))
return 1;
if(!isStraight(value1) && isStraight(value2))
return 2;
if(isStraight(value1) && isStraight(value2))
return inCaseOfTie(value1,value2);
if(isThreeOfAKind(value1) && !isThreeOfAKind(value2))
return 1;
if(!isThreeOfAKind(value1) && isThreeOfAKind(value2))
return 2;
if(isThreeOfAKind(value1) && isThreeOfAKind(value2))
{
if(isThreeOfAKind(value1)> isThreeOfAKind(value2))
return 1;
if(isThreeOfAKind(value1)< isThreeOfAKind(value2))
return 2;
return inCaseOfTie(value1,value2);
}
if(isTwoPairs(value1) && !isTwoPairs(value2))
return 1;
if(!isTwoPairs(value1) && isTwoPairs(value2))
return 2;
if(isTwoPairs(value1) && isTwoPairs(value2))
{
player1pair1=value1[isTwoPairs(value1)%10];
player1pair2=value1[(isTwoPairs(value1)/100)%10];
player2pair1=value2[isTwoPairs(value2)%10];
player2pair2=value2[(isTwoPairs(value2)/100)%10];
a=(player1pair1>player1pair2?player1pair1:player1pair2);
b=(player1pair1<player1pair2?player1pair1:player1pair2);
c=(player2pair1>player2pair2?player2pair1:player2pair2);
d=(player2pair1<player2pair2?player2pair1:player2pair2);
if(a>c)
return 1;
else if (a<c)
return 2;
else if(b>d)
return 1;
else if (b<d)
return 2;
return inCaseOfTie(value1,value2);
}
if(isOnePair(value1) && !isOnePair(value2))
return 1;
if(!isOnePair(value1) && isOnePair(value2))
return 2;
if(isOnePair(value1) && isOnePair(value2))
{
if(isOnePair(value1)> isOnePair(value2))
return 1;
if(isOnePair(value1)< isOnePair(value2))
return 2;
return inCaseOfTie(value1,value2);
}
return inCaseOfTie(value1,value2);
}
void print(int*value,char *suit)
{
int i;
for(i=0;i<5;i++)
printf("%d%c
",value[i],suit[i]);
printf("\n");
}
int main()
{
int n,i,j,answer=0;
int value1[10],value2[10];
char suit1[10],suit2[10],temp;
FILE *f;
n=1000;
f=fopen("poker.txt","r");
if(f)
{
for(i=0;i<n;i++)
{
for(j=0;j<5;j++)
{
fscanf(f," %c%c",&temp,&suit1[j]);
if(temp=='T')
value1[j]=10;
else if(temp=='J')
value1[j]=11;
else if(temp=='Q')
value1[j]=12;
else if(temp=='K')
value1[j]=13;
else if(temp=='A')
value1[j]=14;
else
value1[j]=temp-48;
}
for(j=0;j<5;j++)
{
fscanf(f," %c%c",&temp,&suit2[j]);
if(temp=='T')
value2[j]=10;
else if(temp=='J')
value2[j]=11;
else if(temp=='Q')
value2[j]=12;
else if(temp=='K')
value2[j]=13;
else if(temp=='A')
value2[j]=14;
else
value2[j]=temp-48;
}
sort(value1,suit1);
sort(value2,suit2);
if(whoWins(value1,suit1,value2,suit2)==1)
answer++;
}
printf("answer
= %d",answer);
}
else
printf("There
was some error in opening the file\n");
return 0;
}
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