Question

In the game of blackjack, the cards 2 through 10 are counted at their face values, regardless of suit; all face cards (jack, queen, and king) are counted as 10; and an ace is counted as a 1 or 11, depending on the total count of all cards in a player’s hand. The ace is counted as 11 only if the resulting total value of all cards in a player’s hand doesn’t exceed 21; otherwise, it’s counted as 1. Using this information, write a C++ program that accepts three card values as inputs (a 1 corresponding to an ace, a 2 corresponding to a two, and so on), calculates and display the total value of the hand, and the sum of the three cards.

Answer 1

>Answer

Code:

#include <assert.h>

#include <limits.h>

#include <math.h>

#include <stdbool.h>

#include <stddef.h>

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <string.h>

int getCardValue(int points, int card) {

// Ace is 11 points if total sum does not exceeds 21

// else it is 1 point

if(card == 1){

if(points + 11 < 21)

return 11;

return 1;

}

//Cards value equals their number from 2 to 10

if(card >= 2 && card <= 10)

return card;

//J Q K have 10 points

if(card >= 11 && card <= 13)

return 10;

return 0;

}

void printCardSymbol(int card) {

if(card == 1)

printf("A ");

else if(card == 11)

printf("J ");

else if(card == 12)

printf("Q ");

else if(card == 13)

printf("K ");

else

printf("%d ",card);

return;

}

/* Cards:

* 1 - Ace

* [2,10] - face cards from two to ten

* 11 - J

* 12 - Q

* 13 K

*/

void blackjack() {

// Get random number from 1 to 13

int card1 = rand()%13 + 1;

// Get random number from 1 to 13

int card2 = rand() % 13 + 1;

// Get random number from 1 to 13

int card3 = rand() % 13 + 1;

// Sort card so A will be last elelent

// to add to total numbers

// If it is first number we might get error

// E.X. A 10 Q - AT first sum is zero so

// if we check A we get 11 points but total sum

// of two other cards is 20 and A can not be 11, it is 1

// So to avoid such errors we should check it at first.

if (card1 == 1) {

int tmp = card1;

card1 = card3;

card3 = tmp;

}

if(card2 == 2){

int tmp = card2;

card2 = card3;

card3 = tmp;

}

//Total Points, initialy equals to zero

int totalPoints = 0;

//We add each cards value to total points

totalPoints += getCardValue(totalPoints, card1);

totalPoints += getCardValue(totalPoints, card2);

totalPoints += getCardValue(totalPoints, card3);

//Print summery

printf("Player got cards: ");

printCardSymbol(card1);

printCardSymbol(card2);

printCardSymbol(card3);

printf("\n Player total points: %d",totalPoints);

}

int main() { blackjack ();}

Output:
Your Output (stdout) Player got cards: Q 10 A Player total points: 21