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tictactoe.cpp
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tictactoe.cpp
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#include <iostream>
#include <ctime>
#include <random>
using namespace std;
void boardprint(char Board[][3]);
void playermove(int *rowP, int *colP);
void computermove(int *rowC, int *colC, int rowP, int colP, char Board[][3]);
int checkwinner(char Board[][3]);
const char X = 'X';
const char O = 'O';
int main() {
char Board[3][3];
for(int i=0; i<3; i++) {
for(int j=0; j<3; j++) {
Board[i][j] = ' ';
}
}
int rowP, colP;
int rowC, colC;
for (int i = 0; i < 5; i++) {
boardprint(Board);
playermove(&rowP, &colP);
Board[rowP - 1][colP - 1] = X;
if (checkwinner(Board) == 1) {
boardprint(Board);
cout << "Player Won" << endl;
return 0;
}
computermove(&rowC, &colC, rowP, colP, Board);
Board[rowC - 1][colC - 1] = O;
if (checkwinner(Board) == 2) {
boardprint(Board);
cout << "Computer Won" << endl;
return 0;
}
}
boardprint(Board);
cout << "It's a draw." << endl;
return 0;
}
void boardprint(char Board[][3]) {
for(int i=0; i<3; i++) {
cout<<" "<<Board[i][0]<<" | "<<Board[i][1]<<" | "<<Board[i][2]<<" "<<endl;
if(i<2) {
cout<<"---|---|---"<<endl;
}
}
}
void playermove(int *rowP, int *colP) {
cout<<"Enter row & column : ";
cin>>*rowP>>*colP;
if((*rowP < 1 || *rowP > 3) || (*colP < 1 || *colP > 3)) {
cout<<"invalid input, renter value : ";
while((*rowP < 1 || *rowP > 3) || (*colP < 1 || *colP > 3)) {
cin>>*rowP>>*colP;
}
}
}
void computermove(int *rowC, int *colC, int rowP, int colP, char Board[][3]) {
int min=1, max=3;
random_device rd;
mt19937 gen(rd());
uniform_int_distribution<int> distribution(min, max);
do {
*rowC = distribution(gen);
*colC = distribution(gen);
} while (Board[*rowC - 1][*colC - 1] != ' ');
}
int checkwinner(char Board[][3]) {
for (int i = 0; i < 3; i++) {
if ((Board[i][0] == Board[i][1] && Board[i][1] == Board[i][2])) {
if (Board[i][0] == X) return 1;
if (Board[i][0] == O) return 2;
}
if ((Board[0][i] == Board[1][i] && Board[1][i] == Board[2][i])) {
if (Board[0][i] == X) return 1;
if (Board[0][i] == O) return 2;
}
}
if ((Board[0][0] == Board[1][1] && Board[1][1] == Board[2][2])) {
if (Board[0][0] == X) return 1;
if (Board[0][0] == O) return 2;
}
if ((Board[0][2] == Board[1][1] && Board[1][1] == Board[2][0])) {
if (Board[0][2] == X) return 1;
if (Board[0][2] == O) return 2;
}
return 0;
}