C++ Programming

Q)(Tic-Tac-Toe) Write a program that allows two players to play the tic-tac-toe game. Your program must contain the class ticTacToe to implement a ticTacToe object. Include a 3-by-3 two-dimensional array, as a private member variable, to create the board. If needed, include additional member variables. Some of the operations on a ticTacToe object are printing the current board, getting a move, checking if a move is valid, and determining the winner after each move. Add additional operations as needed.

#include <iostream>

#include <iomanip>

using namespace std;

class ticTacToe{

char b[3][3]; //two dimenstional array

public:

ticTacToe(); //constructor

void board(); //prints the game board

void Input_p1(int); //takes the input from the user

bool Checker(); //checks the winner

};

int main()

{

ticTacToe game; //creating object

game.board(); //display the game board

for (int i = 1; i <= 9; i++) //takes the game input from the user

{

game.Input_p1(i);

if (game.Checker())

break;

if (i + 1 == 10)

{

cout << "NO one WUNS\n";

break;

}

i++;

game.Input_p1(i);

if (game.Checker())

break;

if (i+1 == 10)

cout << "NO one WUNS\n";

}

system("pause");

}

ticTacToe::ticTacToe() //constructor to intialize the 3by3 array

{

b[0][0] = '1';

b[0][1] = '2';

b[0][2] = '3';

b[1][0] = '4';

b[1][1] = '5';

b[1][2] = '6';

b[2][0] = '7';

b[2][1] = '8';

b[2][2] = '9';

}

void ticTacToe::board()//function to create the game board

{

for (int i = 0; i < 3; i++)

for (int j = 0; j < 3; j++)

{

cout << " "<<b[i][j];

if (j <= 1)

cout << " |";

else

cout << endl;

if (j == 2&&i<2)

cout << "-----------" << endl;

}

void ticTacToe::Input_p1(int a) //function that takes input from the user

{

int n, temp = 0;

char c;

if (a == 1 || a == 3 || a == 5 || a == 7 || a == 9)

{

cout << "Player 'X' Turn" << endl;

c = 'X';

}

else

{

cout << "Player 'O' Turn" << endl;

c = 'O';

}

cout << "Enter the Box no :";

do{ // loop to take the box number AGAIN if user enters in correct number

if (temp == 1)

cout << " Again Enter the box no:";

while (!(cin >> n))

{

cin.clear();

cin.ignore(900, '\n');

cout << " Invalid!\n Again Enter the box no :";

}

if (n < 0 || n>9)

temp = 1;

switch (n)

{

case 1:

if (b[0][0] == 'X'||b[0][0]=='O')

temp = 1;

else

{

b[0][0] = c;

temp = 0;

}

break;

case 2:

if (b[0][1] == 'X' || b[0][1] == 'O')

temp = 1;

else

{

b[0][1] = c;

temp = 0;

}

break;

case 3:

if (b[0][2] == 'X' || b[0][2] == 'O')

temp = 1;

else

{

b[0][2] = c;

temp = 0;

}

break;

case 4:

if (b[1][0] == 'X' || b[1][0] == 'O')

temp = 1;

else

{

b[1][0] = c;

temp = 0;

}

break;

case 5:

if (b[1][1] == 'X' || b[1][1] == 'O')

temp = 1;

else

{

b[1][1] = c;

temp = 0;

}

break;

case 6:

if (b[1][2] == 'X' || b[1][2] == 'O')

temp = 1;

else

{

b[1][2] = c;

temp = 0;

}

break;

case 7:

if (b[2][0] == 'X' || b[2][0] == 'O')

temp = 1;

else

{

b[2][0] = c;

temp = 0;

}

break;

case 8:

if (b[2][1] == 'X' || b[2][1] == 'O')

temp = 1;

else

{

b[2][1] = c;

temp = 0;

}

break;

case 9:

if (b[2][2] == 'X' || b[2][2] == 'O')

temp = 1;

else

{

b[2][2] = c;

temp = 0;

}

break;

}

}while(temp != 0);

board();

}

bool ticTacToe::Checker() //checks the winner

{

if ((b[0][0] == 'X'&& b[0][1] == 'X'&&b[0][2] == 'X') ||

(b[1][0] == 'X'&& b[1][1] == 'X'&&b[1][2] == 'X') ||

(b[2][0] == 'X'&& b[2][1] == 'X'&&b[2][2] == 'X') ||

(b[0][0] == 'X'&& b[1][0] == 'X'&&b[2][0] == 'X') ||

(b[0][1] == 'X'&& b[1][1] == 'X'&&b[2][1] == 'X') ||

(b[0][2] == 'X'&& b[1][1] == 'X'&&b[2][0] == 'X')||

(b[0][0] == 'X'&& b[1][1] == 'X'&&b[2][2] == 'X'))

{

cout << "Player 'X' WINS" << endl;

return 1;

}

else if ((b[0][0] == 'O'&& b[0][1] == 'O'&&b[0][2] == 'O') ||

(b[1][0] == 'O'&& b[1][1] == 'O'&&b[1][2] == 'O') ||

(b[2][0] == 'O'&& b[2][1] == 'O'&&b[2][2] == 'O') ||

(b[0][0] == 'O'&& b[1][0] == 'O'&&b[2][0] == 'O') ||

(b[0][1] == 'O'&& b[1][1] == 'O'&&b[2][1] == 'O') ||

(b[0][2] == 'O'&& b[1][1] == 'O'&&b[2][0] == 'O') ||

(b[0][0] == 'O'&& b[1][1] == 'O'&&b[2][2] == 'O'))

cout << "Player 'O' WINS" << endl;

else

return 0;

}

Q)Write a program that converts a number entered in Roman numerals to decimal. Your program should consist of a class, say, romanType. An object of type romanType should do the following:  Store the number as a Roman numeral.  Convert and store the number into decimal form.  Print the number as a Roman numeral or decimal number as requested by the user. The decimal values of the Roman numerals are:
 Test your program using the following Roman numerals: MCXIV, CCCLIX, MDCLXVI.

#include<iostream>

using namespace std;

class romanType{

char R[8]; //intialized by the constructor

int decimal; //stores the decimal number after converting

public:

romanType(); //constructor

void R2D(); //declaration of a function to convert roman into decimal

int get_decimal();//declaration of a function to get decimal number

bool operator>=(int);//operator overloading

};

int main()

{

romanType ob; //creating the object

ob.R2D();

if (ob >= 0)

cout << "Decimal : " << ob.get_decimal() << endl;

else

cout << "Invalid Format of a number" << endl;

}

void romanType::R2D()

{

char a[1000];

cout << "Enter the number in roman format(M-D-C-L-X-V-I) :";

cin >> a;

int dec,l,n=0;

l = strlen(a); //cal the length of char string

for (int i = l-1; i>=0; i--) //cal from roman to decimal format

{

a[i] = toupper(a[i]);

if (a[i] == R[0])

dec = 1000;

else if (a[i] == R[1])

dec = 500;

else if (a[i] == R[2])

dec = 100;

else if (a[i] == R[3])

dec = 50;

else if (a[i] == R[4])

dec = 10;

else if (a[i] == R[5])

dec = 5;

else if (a[i] == R[6])

dec = 1;

else

{

decimal = -1;

break;

}

if (n > dec)

decimal = (decimal-dec);

else

decimal = decimal + dec;

n = dec;

}

int romanType::get_decimal() //function to return the decmial number

{

return decimal;

}

romanType::romanType()//Constructor

{

R[0] = 'M';

R[1] = 'D';

R[2] = 'C';

R[3] = 'L';

R[4] = 'X';

R[5] = 'V';

R[6] = 'I';

decimal = 0;

}

bool romanType::operator>=(int n = 0)

{

if (decimal >= 0)

return 1;

else

return 0;

}

Q)A common place to buy candy is from a machine. A new candy machine has been purchased for the gym, but it is not working properly. The machine sells candies, chips, gum, and cookies. You have been asked to write a program for this candy machine so that it can be put into operation.
The program should do the following:  Show the customer the different products sold by the candy machine.  Let the customer make the selection.  Show the customer the cost of the item selected.  Accept money from the customer.  Release the item.

#include<iostream>

using namespace std;

class candy_M {

string items[4];//intialized by constructor the name of the items

double price[4]; //intilized by constructor the price of items

int choice; //stores the choice of item to be selected

double E_amount; //stores the Amount entered by the user

double r_amount; //stores the reaming amount if the entered amount is greater than the item price

public:

candy_M(); //constructor

void menu(); //declaration of a function display the menu of items

void set_Choice(int); //declaration of a function set the choice entered ny the user

void set_amount(double); //declaration of a function set the Amount entered ny the user

void check_Amount()const; //declaration of a function check wheather the amont entered is == or > or < then the items price

};

int main()

{

int ch;

double am;

candy_M M1; //creating object

M1.menu(); //display menu

while (!(cin >> ch) || (ch>4 || ch <= 0)) //takes the choice and checking it if it is valid or not

{

cin.clear();

cin.ignore(900, '\n');

cout << " Invalid choice!\nAgain Enter the Choice:";

}

M1.set_Choice(ch);

cout << "Enter the Amount :";

while (!(cin >> am) || (am <= 0)) //takes the Amount and checking it if it is valid or not

{

cin.clear();

cin.ignore(900, '\n');

cout << " Invalid Amount!\nAgain Enter the Amount:";

}

M1.set_amount(am);

M1.check_Amount();

return 0;

}

void candy_M::menu()//function display the menu of items

{

cout << "**************CANDY MACHINE*****************\n";

cout << "\t 1 for Chips RS 50.\n";

cout << "\t 2 for Candies RS 20.\n";

cout << "\t 3 for Gum RS 10.\n";

cout << "\t 4 for Cookies RS 40.\n";

cout << "Enter your Choice :";

}

void candy_M::set_Choice(int ch) //function set the choice entered ny the user

{

choice = ch - 1;

}

void candy_M::set_amount(double p) //function set the Amount entered ny the user

{

E_amount = p;

}

void candy_M::check_Amount()const //function check wheather the amont entered is == or > or < then the items price

{

double am = E_amount - price[choice];

if (am > 0)

{

cout << "Take the Remaining Money\n";

cout << "You the purchased the item\nTake the item\n";

}

else if (am == 0)

cout << "You the purchased the item\nTake the item";

else

cout << "\nYou have entered the Amount less than the price of an item\n";

}

candy_M::candy_M() //Constructor

{

items[0] = "Chips";

items[1] = "Candies";

items[2] = "Gum";

items[3] = "Cookies";

price[0] = 50;

price[1] = 20;

price[2] = 10;

price[3] = 40;

}

Saturday, 12 November 2016