Write a program that scores a blackjack hand. In blackjack, a player receives from two to five cards. (The player decides how many, but that has no effect on this exercise.) The cards 2 through 10 are scored as 2 through 10 points each. The face cards, jack, queen, and king are scored as 10 points. The goal is to come as close to a score of 21 as possible without going over 21. Hence, any score over 21 is called "busted." The ace can count as either 1 or 11, whichever is better for the user. For example, an ace and a 10 can be scored as either 11 or 21. Since 21 is a better score, this hand is scored as 21. An ace and two 8' s can be scored as either 17 or 27. Since 27 is a "busted" score, this hand is scored as 17.

C++ code is explained below

Explanation:

#include <iostream>

using namespace std;

void instructions ( );

void input (int& number_of_cards, char& card_value1, char& card_value2, char& card_value3, char& card_value4, char& card_value5);

int calculate_hand (int& number_of_cards, char& card_value1, char& card_value2, char& card_value3, char& card_value4, char& card_value5);

void output_result ( );

int main ( )

{

char yes;

int number_of_cards;

char card_value1;

char card_value2;

char card_value3;

char card_value4;

char card_value5;

instructions ( );

do{

input (number_of_cards, card_value1, card_value2, card_value3, card_value4, card_value5);

cout << "Again? (y/n)" << endl;

cin >> yes;

cout << endl;

}while (yes == 'Y' || yes == 'y');

system ("Pause");

return 0;

}

void instructions ( )

{

cout << "This program scores a blackjack hand. The user is asked how many cards" << endl;

cout << "he or she has, and the card values. This program will then output the user's" << endl;

cout << "scores. The output will be either: a number between 2 and 21, or the word BUSTED" << endl << endl;

cout << "The values of the cards should be inputted as the following: input the numbers" << endl;

cout << "2-9 just as inputting regular numbers, for the number 10 input 't', for jack" << endl;

cout << "input 'j' for queen input 'q', for king input 'k', and for ace input 'a'" << endl << endl;

}

void input (int& number_of_cards, char& card_value1, char& card_value2, char& card_value3, char& card_value4, char& card_value5)

{

cout << "Please input the number of cards in your hand (either 2, 3, 4, or 5)" << endl;

cin >> number_of_cards;

cout << endl;

if (number_of_cards == 2)

{

cout << "Please input the value of the first card: " << endl;

cin >> card_value1;

cout << "Please input the value of the second card: " << endl;

cin >> card_value2;

cout << endl << endl;

}

else if (number_of_cards == 3)

{

cout << "Please input the value of the first card: " << endl;

cin >> card_value1;

cout << "Please input the value of the second card: " << endl;

cin >> card_value2;

cout << "Please input the value of the third card: " << endl;

cin >> card_value3;

cout << endl << endl;

}

else if (number_of_cards == 4)

{

cout << "Please input the value of the first card: " << endl;

cin >> card_value1;

cout << "Please input the value of the second card: " << endl;

cin >> card_value2;

cout << "Please input the value of the third card: " << endl;

cin >> card_value3;

cout << "Please input the value of the fourth card: " << endl;

cin >> card_value4;

cout << endl << endl;

}

else if (number_of_cards == 5)

{

cout << "Please input the value of the first card: " << endl;

cin >> card_value1;

cout << "Please input the value of the second card: " << endl;

cin >> card_value2;

cout << "Please input the value of the third card: " << endl;

cin >> card_value3;

cout << "Please input the value of the fourth card: " << endl;

cin >> card_value4;

cout << "Please input the value of the fifth card: " << endl;

cin >> card_value5;

cout << endl << endl;

}

}

int calculate_hand (int& number_of_cards, char& card_value1, char& card_value2, char& card_value3, char& card_value4, char& card_value5)

{

}