#include -stdio-h- #include -stdlib-h- #include -stdbool-h- #include - (1).docx

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <time.h>
#include <string.h>
char** createboard(int size);
void printboard(char** board, int size);
int isdraw(char** board, int size);
char winningmove(char** board, int size, int i, int j);
// Prints the board
void printboard(char** board, int size) {
printf(" ");
for(int i = 1; i <= size; i++) {
printf("|%d", i);
}
printf("|n");
for(int i = 0; i < size; i++) {
printf("%c", 'a' + i);
for(int j = 0; j < size; j++) {
printf("|%c", board[i][j]);
}
printf("|n");
}

}
// Creates nxn tic tac toe board
char** createboard(int size) {
char** board = calloc(size, sizeof(char*));
board[i] = calloc(size, sizeof(char));
}
board[i][j] = ' ';
}
}
return board;
}
// Returns true if the game is a draw
int isdraw(char** board, int size) {
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 winningmove(char** board, int size, int i, int j) {
char symbol = board[i][j];
bool win = true;
// check row
for(int k = 0; k < size; k++) {
if(board[i][k] != symbol) {
win = false;
break;
}
}
if(win) {
return symbol;
}
win = true;
// check column

if(board[k][j] != symbol) {
win = false;
break;
}
}
if(win) {
return symbol;
}
win = true;
// check forward diagonal
if(board[k][k] != symbol) {
win = false;
break;
}
}
if(win) {
return symbol;
}
win = true;
// check reverse diagonal
if(board[k][size-k-1] != symbol) {

win = false;
break;
}
}
if(win) {
return symbol;
}
// got nothing
return 0;
}
int main(int argc, char *argv[]) {
int size = 3; // Default size is 3
int computer = 0; // Default is human vs human
srand(time(NULL));
// Parse command line arguments
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "-s") == 0) {
if (i+1 < argc) {
size = atoi(argv[i+1]);
if (size < 3) {
printf("Error: Board size cannot be less than 3n");
return 1;
}

i++;
} else {
printf("Error: Board size option requires a size argumentn");
return 1;
}
} else if (strcmp(argv[i], "-i") == 0) {
computer = 1;
}
}
char **board = createboard(size);
char winner = '0';
char row;
char col;
char turn = 'X';
// standard game loop
while (!winner && !isdraw(board, size)) {
printboard(board, size);
if (turn == 'X' || !computer) {
printf("Player %c's turnn", turn);
printf("(row column) Example: 1 2 ---> ");
fflush(stdout);
scanf(" %c %c", &row, &col);
} else {

printf("Computer's turnn");
// Randomly pick a move
do {
row = rand() % size + '1';
col = rand() % size + '1';
} while (board[row-'1'][col-'1'] != ' ');
printf("Computer played %c %cn", row, col);
}
// Make move if square is free
int rowind = row - '1';
int colind = col - '1';
if (rowind >= size || colind >= size) {
printf("Invalid moven");
} else if (board[rowind][colind] == ' ') {
printf("Move is %c %c (%d, %d)n", row, col, rowind, colind);
board[rowind][colind] = turn;
if (turn == 'X') {
turn = 'O';
} else {
turn = 'X';
}
winner = winningmove(board, rowind, colind, size);
} else {

printf("Square is occupied; try again.n");
}
}
// Game over - print board & declare finish
printboard(board, size);
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 < size; i++) {
free(board[i]);
}
free(board);
return 0;
}
this is the code that can play tic tac toe.
we can put command line argument -s <size> to set the dimensions of the board, and -i to
indicate that the computer picks its position randomly.
would you change the " // Parse command line arguments to using " part to using getopt() with
the same result?
please give a explain with the code and result.

#include -stdio-h- #include -stdlib-h- #include -stdbool-h- #include - (1).docx

#include -stdio-h- #include -stdlib-h- #include -stdbool-h- #include - (1).docx

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