#include using namespace std; char square[10] = {'0','1','2','3','4','5','6','7','8','9'}; int checkwin() /*function to check the status of the game * 1-game is over with result * 0-game is over with no result * -1-game is not over */ { if(square[1]==square[2]&&square[2]==square[3]) return 1; else if(square[1]==square[5]&&square[5]==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[3]==square[5]&&square[5]==square[7]) 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]!='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; } void board() { cout<<"\n\nTic Tac Toe\n\n"; cout<<"Player 1 (X) and Player 2 (O)\n\n"; cout<>player; do { board(); player=(player%2)?1:2; cout<<"Player "<>choice; mark=(player==1)?'X':'O'; 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"; continue; } i=checkwin(); player++; }while(i==-1); if(i==1) cout<<" Player "<<--player<<" WIN! "; else if(i==0) cout<<" Game draw "; return 0; }

Tic tac toe