#include <stdio.h> #include <stdlib.h> // malloc #include <time.h> // srand #include <unistd.h> // 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); // Prints the Board void print_board(char **Board, int board_sz) { printf(" "); for (int i = 0; i < board_sz; i++) { printf("|%d", i); } printf("|\n"); for (int i = 0; i < board_sz; i++) { printf("%c", 'a' + i); for (int j = 0; j < board_sz; j++) { printf("|%c", Board[i][j]); } printf("|\n"); } } // 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; } // -------------------------getMove ------------------------------- int getMove( char ** Board, int board_sz, char *x, char *y ){ Board = create_board(board_sz); char winner = '\0'; char row = *x; char col = *y; char turn = 'X'; char ch; int computer_enabled = 0; if (turn == 'X' || !computer_enabled) { printf("computer 'O' Moves are 'enabled'\n"); printf("-Player's %c turn (qq to quit)\n\n", turn); // suggestion do { row = rand() % board_sz + 'a'; // col = rand() % board_sz + '0'; } while (Board[row - 'a'][col - '1'] != ' '); printf("*---> suggestion:\t(%c %c)\n\n", row, col); printf("(X) Enter Move (row column) ---------------------------> "); fflush(stdout); scanf(" %c %c", &row, &col); // quit when enter qq. if (ro.

1. #include <stdio.h>
#include <stdlib.h> // malloc
#include <time.h> // srand
#include <unistd.h> // 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);
// Prints the Board
void print_board(char **Board, int board_sz)
{
printf(" ");
for (int i = 0; i < board_sz; i++)
{
printf("|%d", i);
}
printf("|n");
for (int i = 0; i < board_sz; i++)
{
printf("%c", 'a' + i);
for (int j = 0; j < board_sz; j++)
{
printf("|%c", Board[i][j]);

2. }
printf("|n");
}
}
// 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)

3. {
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++)

4. {
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)
{

5. 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;

6. break;
}
}
if (win)
{
return Board[row_index][col_index];
}
// got nothing
return 0;
}
// -------------------------getMove -------------------------------
int getMove( char ** Board, int board_sz, char *x, char *y ){
Board = create_board(board_sz);
char winner = '0';
char row = *x;
char col = *y;
char turn = 'X';
char ch;
int computer_enabled = 0;
if (turn == 'X' || !computer_enabled)
{
printf("computer 'O' Moves are 'enabled'n");
printf("-Player's %c turn (qq to quit)nn", turn);

7. // suggestion
do
{
row = rand() % board_sz + 'a'; //
col = rand() % board_sz + '0';
} while (Board[row - 'a'][col - '1'] != ' ');
printf("*---> suggestion:t(%c %c)nn", 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'n");
printf("*Player's O turn (qq to quit)nnn");
// Randomly pick a move
do
{
row = rand() % board_sz + 'a'; //

8. 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 moven");
}
else if (Board[rowind][colind] == ' ')
{
char enter;
enter = getchar();
printf("Move is %c %c (%d, %d)n", row, col, rowind, colind);
Board[rowind][colind] = turn;
if (turn == 'X')
{
turn = 'O';
}
else
{

9. turn = 'X';
}
winner = winning_move(Board, board_sz, rowind, colind);
}
else
{
printf("Square is occupied; try again.n");
}
// Game over - print Board & declare finish
print_board(Board, board_sz);
if (winner == 'X' || winner == 'O')
{
printf("Congratulations %c!n", winner);
}
else
{
printf("Game ends in a draw.n");
}
// Free memory
for (int i = 0; i < board_sz; i++)
{
free(Board[i]);
}

10. free(Board);
return 0;
}
// -----------------------------------------------------------------------
// main function where program start
int main(int argc, char **argv)
{
int opt;
int board_sz = 3;
int computer_enabled = 0;
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:

11. break;
}
}
char **Board = create_board(board_sz);
char winner = '0';
char *row;
char *col;
char turn = 'X';
char ch;
// standard game loop
while (!winner && !is_draw(Board, board_sz))
{
print_board(Board, board_sz);
getMove(Board, board_sz, *row, *col);
return 0;
}
}
this is tic-tac-toe game code in c.
but i got a error here.
could you please fix this code and explain why the error occurs here?
please fix the code and show the run result also. thank you.
C split_copy.c 2 incompatible integer to pointer conversion passing 'char' to parameter of type
'char *'; remove * [-Wint-conversion] gcc [Ln 273, Col 34] incompatible integer to pointer
conversion passing 'char' to parameter of type 'char ; remove [ Wint-conversion] gcc [Ln 273,
Col 40]