Write a C program to implement a TIC TAC TOE game

Below is the source code of the C program to implement a TIC TAC TOE game which is successfully compiled and run on the windows system.The Output of the program is shown below.

SOURCE CODE : :

#include<stdio.h>
#include<conio.h>

void Board();
void PlayerX();
void PlayerO();
void Player_win();
void check();
int win=0,wrong_X=0,wrong_O=0,chk=0;

char name_X[30];
char name_O[30];
int pos_for_X[3][3];
int pos_for_O[3][3];
int pos_marked[3][3];

void main()
{
        int i,ch,j;
        char ans;

        do
        {

                printf("\n\t\t\t\tTIC TAC TOE");
                printf("\n\t\t\t\t");
                for(i=1;i<=11;i++)
                {

                        printf("*");
                }
                printf("\n1.Start The Game");
                printf("\n2.Quit The Game");
                printf("\nEnter your choice(1-2) : ");
                scanf("%d",&ch);
                switch(ch)
                {
                        case 1:
                                chk=0;
                                win=0;
                                for(i=1;i<=3;i++)
                                {
                                        for(j=1;j<=3;j++)
                                        {
                                                pos_for_X[i][j]=0;
                                                pos_for_O[i][j]=0;
                                                pos_marked[i][j]=0;
                                        }
                                }
                                printf("\n\n");

                                printf("\nEnter the name of the player playing for \'X\': ");
                                fflush(stdin);
                                gets(name_X);
                                printf("\nEnter the name of the player playing for \'O\': ");
                                fflush(stdin);
                                gets(name_O);
                                Board();
                                for(;;)
                                {
                                        if(win==1)
                                                break;
                                        check();
                                        if(chk==9)
                                        {
                                                printf("\n\t\t\tMATCH DRAWS!!");
                                                printf("\nPress any key....");
                                                break;
                                        }
                                        else
                                                chk=0;
                                        printf("\nTURN FOR %s:",name_X);
                                        PlayerX();
                                        do
                                        {
                                                if(wrong_X!=1)
                                                        break;
                                                wrong_X=0;
                                                printf("\nTURN FOR %s:",name_X);
                                                PlayerX();
                                        }while(wrong_X==1);
                                        check();
                                        if(chk==9)
                                        {
                                                printf("\n\t\t\tMATCH DRAWS");
                                                printf("\nPress any key....");
                                                break;
                                        }
                                        else
                                                chk=0;
                                        printf("\nTURN FOR %s:",name_O);
                                        PlayerO();
                                        do
                                        {
                                                if(wrong_O!=1)
                                                        break;
                                                wrong_O=0;
                                                printf("\nTURN FOR %s:",name_O);
                                                PlayerO();
                                        }while(wrong_O==1);

                                        }
                                Board();
                                if(win!=1)
                                {
                                        printf("\n\t\t\tMATCH DRAWS!!");
                                        printf("\nPress any key.......");
                                }

                                break;
                        case 2:
                                printf("\n\n\n\t\t\tThank You For Playing The Game.");
                                printf("\n\t\t\t###############################");

                                exit(1);
                                break;
                }
                printf("\nWant To Play(Y/N) ? ");
                fflush(stdin);
                scanf("%c",&ans);
        }while(ans=='y' || ans=='Y');
}


void Board()
{
        int i,j;

        printf("\n\t\t\t\tTIC TAC TOE BOARD");
        printf("\n\t\t\t\t*****************");
        printf("\n\n\n");
        printf("\n\t\t\t    1\t      2\t        3");
        for(i=1;i<=3;i++)
        {
                printf("\n \t\t\t _____________________________");
                printf("\n \t\t\t?\t  ?\t   ?\t     ?");
                printf("\n\t\t%d\t",i);
                for(j=1;j<=3;j++)
                {

                        if(pos_for_X[i][j]==1)
                        {
                                printf("    X");
                                printf("     ");
                        }
                        else if(pos_for_O[i][j]==1)
                        {
                                printf("    O");
                                printf("     ");
                        }
                        else
                        {
                                printf("          ");
                                continue;
                        }
                }
                printf("\n\t\t\t?\t  ?\t   ?\t     ?");
        }
        printf("\n\t\t\t------------------------------");
        Player_win();
}


void PlayerX()
{
        int row,col;
        if(win==1)
                return;
        printf("\nEnter the row no. : ");
        fflush(stdin);
        scanf("%d",&row);
        printf("Enter the column no. : ");
        fflush(stdin);
        scanf("%d",&col);
        if(pos_marked[row][col]==1 || row<1 || row>3 || col<1 || col>3)
        {
                printf("\nWRONG POSITION!! Press any key.....");
                wrong_X=1;

                Board();
        }
        else
        {
                pos_for_X[row][col]=1;
                pos_marked[row][col]=1;
                Board();
        }
}
void PlayerO()
{
        int row,col;
        if(win==1)
                return;
        printf("\nEnter the row no. : ");
        scanf("%d",&row);
        printf("Enter the column no. : ");
        scanf("%d",&col);
        if(pos_marked[row][col]==1 || row<1 || row>3 || col<1 || col>3)
        {
                printf("\nWRONG POSITION!! Press any key....");
                wrong_O=1;

                Board();
        }
        else
        {
                pos_for_O[row][col]=1;
                pos_marked[row][col]=1;
                Board();
        }
}
void Player_win()
{
        int i;
        for(i=1;i<=3;i++)
        {
                if(pos_for_X[i][1]==1 && pos_for_X[i][2]==1 && pos_for_X[i][3]==1)
                {
                        win=1;
                        printf("\n\nRESULT: %s wins!!",name_X);
                        printf("\nPress any key............");
                        return;
                }
        }
        for(i=1;i<=3;i++)
        {
                if(pos_for_X[1][i]==1 && pos_for_X[2][i]==1 && pos_for_X[3][i]==1)
                {
                        win=1;
                        printf("\n\nRESULT: %s wins!!",name_X);
                        printf("\nPress any key............");
                        return;
                }
        }
        if(pos_for_X[1][1]==1 && pos_for_X[2][2]==1 && pos_for_X[3][3]==1)
        {
                win=1;
                printf("\n\nRESULTL: %s wins!!",name_X);
                printf("\nPress any key......");
                return;
        }
        else if(pos_for_X[1][3]==1 && pos_for_X[2][2]==1 &&
pos_for_X[3][1]==1)
        {
                win=1;
                printf("\n\nRESULT: %s wins!!",name_X);
                printf("\nPress any key.....");
                return;
        }

        for(i=1;i<=3;i++)
        {
                if(pos_for_O[i][1]==1 && pos_for_O[i][2]==1 && pos_for_O[i][3]==1)
                {
                        win=1;
                        printf("\n\nRESULT: %s wins!!",name_O);
                        printf("\nPress any key.....");
                        return;
                }
        }
        for(i=1;i<=3;i++)
        {
                if(pos_for_O[1][i]==1 && pos_for_O[2][i]==1 && pos_for_O[3][i]==1)
                {
                        win=1;
                        printf("\n\nRESULT: %s wins!!",name_O);
                        printf("\nPress any key.....");
                        return;
                }
        }
        if(pos_for_O[1][1]==1 && pos_for_O[2][2]==1 && pos_for_O[3][3]==1)
        {
                win=1;
                printf("\n\nRESULT: %s wins!!",name_O);
                printf("\nPress any key.....");
                return;
        }
        else if(pos_for_O[1][3]==1 && pos_for_O[2][2]==1 &&
pos_for_O[3][1]==1)
        {
                win=1;
                printf("\n\nRESULT: %s wins!!",name_O);
                printf("\nPress any key.....");
                return;
        }
}
void check()
{
        int i,j;
        for(i=1;i<=3;i++)
        {
                for(j=1;j<=3;j++)
                {
                        if(pos_marked[i][j]==1)
                                chk++;
                        else
                                continue;
                }
        }
}

OUTPUT : :

TIC TAC TOE
                                ***********
1.Start The Game
2.Quit The Game
Enter your choice(1-2) : 1



Enter the name of the player playing for 'X': John Smith

Enter the name of the player playing for 'O': Steve

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR John Smith:
Enter the row no. : 2
Enter the column no. : 2

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR Steve:
Enter the row no. : 3
Enter the column no. : 3

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3                               O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR John Smith:
Enter the row no. : 1
Enter the column no. : 3

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                               X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3                               O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR Steve:
Enter the row no. : 3
Enter the column no. : 1

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                               X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O                   O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR John Smith:
Enter the row no. : 3
Enter the column no. : 2

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                               X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR Steve:
Enter the row no. : 1
Enter the column no. : 2

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                     O         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2                     X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR John Smith:
Enter the row no. : 2
Enter the column no. : 1

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                     O         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2           X         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR Steve:
Enter the row no. : 2
Enter the column no. : 3

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1                     O         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2           X         X         O
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
TURN FOR John Smith:
Enter the row no. : 1
Enter the column no. : 1

                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1           X         O         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2           X         X         O
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
                        MATCH DRAWS
Press any key....
                                TIC TAC TOE BOARD
                                *****************



                            1         2         3
                         _____________________________
                        ?         ?        ?         ?
                1           X         O         X
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                2           X         X         O
                        ?         ?        ?         ?
                         _____________________________
                        ?         ?        ?         ?
                3           O         X         O
                        ?         ?        ?         ?
                        ------------------------------
                        MATCH DRAWS!!
Press any key.......
Want To Play(Y/N) ? n