#include

#include // malloc

#include // srand

#include // optarg

char **create_board(int board_sz);

void print_board(char **Board, int board_sz);

int is_draw(char **Board, int board_sz);

char winning_move(char **Board, int board_sz, int row_index, int col_index);

int play_tictactoe(int board_sz, int computer_enabled );

// Prints the Board

void print_board(char **Board, int board_sz)

{

printf(" ");

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

{

printf("|%d", i); // column

}

printf("| ");

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

{

printf("%c", 'a' + i); // row

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

{

printf("|%c", Board[i][j]); // index for each square

}

printf("| ");

}

}

// Creates nxn tic tac toe Board

char **create_board(int board_sz)

{

char **Board = (char **)malloc(board_sz * sizeof(char *));

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

{

Board[i] = (char *)malloc(board_sz * sizeof(char));

}

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

{

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

{

Board[i][j] = ' ';

}

}

return Board;

}

// Returns true if the game is a draw

int is_draw(char **Board, int board_sz)

{

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

{

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

{

if (Board[i][j] == ' ')

{

// empty square, so game ain't over yet

return 0;

}

}

}

// no empty squares, so it's a draw

return 1;

}

// Returns 'X' if (i,j) was a winning move for X

// Returns 'O' if (i,j) was a winning move for O

// Returns ASCII value 0 otherwise

char winning_move(char **Board, int board_sz, int row_index, int col_index)

{

int win = 1;

// check row

for (int k = 0; k < board_sz; k++)

{

if (Board[row_index][k] != Board[row_index][col_index])

{

win = 0;

break;

}

}

if (win) // means Board[i][k] == Board[i][j]

{

return Board[row_index][col_index];

}

// check column

win = 1;

for (int k = 0; k < board_sz; k++)

{

if (Board[k][col_index] != Board[row_index][col_index])

{

win = 0;

break;

}

}

if (win)

{

return Board[row_index][col_index];

}

// check forward diagonal

win = 1;

for (int k = 0; k < board_sz; k++)

{

if (Board[k][k] != Board[row_index][col_index])

{

win = 0;

break;

}

}

if (win)

{

return Board[row_index][col_index];

}

// check reverse diagonal

win = 1;

for (int k = 0; k < board_sz; k++)

{

if (Board[k][board_sz - k - 1] != Board[row_index][col_index])

{

win = 0;

break;

}

}

if (win)

{

return Board[row_index][col_index];

}

// got nothing

return 0;

}

// main function where program start

int main(int argc, char **argv)

{

int opt;

int board_sz = 3;

int computer_enabled;

srand(time(NULL));

// Parse command line arguments using getopt()

while ((opt = getopt(argc, argv, "s:i")) != -1)

{

switch (opt)

{

case 's':

board_sz = atoi(optarg);

break;

case 'i':

computer_enabled = 1;

break;

default:

break;

}

}

play_tictactoe(board_sz, computer_enabled);

return 0;

}

int play_tictactoe(int board_sz, int computer_enabled ){

char **Board = create_board(board_sz);

char winner = '\0';

char row;

char col;

char turn = 'X';

// standard game loop

while (!winner && !is_draw(Board, board_sz))

{

print_board(Board, board_sz);

if (turn == 'X' || !computer_enabled)

{

printf("computer 'O' Moves are 'enabled' ");

printf("-Player's %c turn (qq to quit) ", turn);

// suggestion

do

{

row = rand() % board_sz + 'a'; //

col = rand() % board_sz + '0';

} while (Board[row - 'a'][col - '1'] != ' ');

printf("*---> suggestion:\t(%c %c) ", row, col);

printf("(X) Enter Move (row column) ---------------------------> ");

fflush(stdout);

scanf(" %c %c", &row, &col);

// quit when enter qq.

if (row == 'q' && col == 'q'){

exit(0);

}

}

else

{

printf("computer 'O' Moves are 'enabled' ");

printf("*Player's O turn (qq to quit) ");

// Randomly pick a move

do

{

row = rand() % board_sz + 'a'; //

col = rand() % board_sz + '0';

} while (Board[row - 'a'][col - '1'] != ' ');

printf("(O) computer Picks (%c %c) (hit a key to continue) ----> ", row, col);

}

// Make move if square is free

int rowind = row - 'a';

int colind = col - '0';

if (rowind >= board_sz || colind >= board_sz)

{

printf("Invalid move ");

}

else if (Board[rowind][colind] == ' ')

{

char enter;

enter = getchar();

printf("Move is %c %c (%d, %d) ", row, col, rowind, colind);

Board[rowind][colind] = turn;

if (turn == 'X')

{

turn = 'O';

}

else

{

turn = 'X';

}

winner = winning_move(Board, board_sz, rowind, colind);

}

else

{

printf("Square is occupied; try again. ");

}

}

// Game over - print Board & declare finish

print_board(Board, board_sz);

if (winner == 'X' || winner == 'O')

{

printf("Congratulations %c! ", winner);

}

else

{

printf("Game ends in a draw. ");

}

return 0;

}

this is the tic tac toe game code in c.

(you can turn this code with command line input ex) ./ttt -s 4 -i)

I'd like to split it into a header file(.h) and a source file(.c)

I need at least two .c file here and .h file for each .c file.

*.c (should have at least 2 .c files)

*.h (should have at least 1 .h file)

please make those files and explain please. showing results would be great. thank you.