HUMAN vs COMPUTER! You are going to program a game of tic-tac-toe. The human wil

Question

HUMAN vs COMPUTER!

You are going to program a game of tic-tac-toe. The human will play the computer. Use the following pseudocode to guide your design:

The easiest way to conceptualize the board is as an array or a vector (See figure ??). This simplifies data entry because the human just enters the index number for the space they want to move to.

Add statements to the main() function to do the following:

Split this up into functions, do not write a monolithic block of

code. Create at least 4 functions, not counting main().

Test Human input and only accept valid moves.

Use whatever method is expedient to generate the computer moves; this isn’t an AI class.

Explanation / Answer

#include <iostream>
#include <conio.h>
using namespace std;
int checkwin( char[]);
void board( char[]);
void main()
{
char square[10] = {'o','1','2','3','4','5','6','7','8','9'};
int player = 1,i,choice;
char mark;
do
{
board(square);
if(player%2==1)
player=1;
else
player=2;
if(player==2)
{
cout << "Players " << player<<endl;
cout<<"Press Enter for CPU"<<endl;
choice=rand()%9;
mark='O';
int turn=1;
int placed=0;
while(placed==0)
{
if (choice == 1 && square[1] == '1')
{
square[1] = mark;
placed=1;
}
else if (choice == 2 && square[2] == '2')
{
square[2] = mark;
placed=1;
}
else if (choice == 3 && square[3] == '3')
{
square[3] = mark;
placed=1;
}
else if (choice == 4 && square[4] == '4')
{
placed=1;
square[4] = mark;
}
else if (choice == 5 && square[5] == '5')
{
square[5] = mark;
placed=1;
}
else if (choice == 6 && square[6] == '6')
{
square[6] = mark;
placed=1;
}
else if (choice == 7 && square[7] == '7')
{
square[7] = mark;
placed=1;
}
else if (choice == 8 && square[8] == '8')
{
square[8] = mark;
placed=1;
}
else if (choice == 9 && square[9] == '9'){
square[9] = mark;
placed=1;
}
else
{
choice=rand()%9;
}
}
i=checkwin(square);
player++;
_getche();
board(square);
}
else if(player==1)
{
cout << "Players " << player << ", enter a number: ";
cin >> choice;
mark='X';
if (choice == 1 && square[1] == '1')
square[1] = mark;
else if (choice == 2 && square[2] == '2')
square[2] = mark;
else if (choice == 3 && square[3] == '3')
square[3] = mark;
else if (choice == 4 && square[4] == '4')
square[4] = mark;
else if (choice == 5 && square[5] == '5')
square[5] = mark;
else if (choice == 6 && square[6] == '6')
square[6] = mark;
else if (choice == 7 && square[7] == '7')
square[7] = mark;
else if (choice == 8 && square[8] == '8')
square[8] = mark;
else if (choice == 9 && square[9] == '9')
square[9] = mark;
else
{
cout<<"Invalid move ";
player--;
_getche();
}
i=checkwin(square);
player++;
}
}
while(i==-1);
board(square);
if(i==1)
cout<<"Congratulation! Player "<<--player<<" win ";
else
cout<<" OOps! Game draw";
_getche();
}
void board(char square[])
{
system("cls");
cout << " Tic Tac Toe ";
cout << "Player 1 (X) - Player 2 (O)" << endl << endl;
cout << endl;
cout << " | | " << endl;
cout << " " << square[1] << " | " << square[2] << " | " << square[3] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << square[4] << " | " << square[5] << " | " << square[6] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << square[7] << " | " << square[8] << " | " << square[9] << endl;
cout << " | | " << endl << endl;
}
int checkwin(char square[])
{
if (square[1] == square[2] && square[2] == square[3])
return 1;
else if (square[4] == square[5] && square[5] == square[6])
return 1;
else if (square[7] == square[8] && square[8] == square[9])
return 1;
else if (square[1] == square[4] && square[4] == square[7])
return 1;
else if (square[2] == square[5] && square[5] == square[8])
return 1;
else if (square[3] == square[6] && square[6] == square[9])
return 1;
else if (square[1] == square[5] && square[5] == square[9])
return 1;
else if (square[3] == square[5] && square[5] == square[7])
return 1;
else if (square[1] != '1' && square[2] != '2' && square[3] != '3'
&& square[4] != '4' && square[5] != '5' && square[6] != '6'
&& square[7] != '7' && square[8] != '8' && square[9] != '9')
return 0;
else
return -1;
}

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