Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
void start_box(void);
void show_box(void);
unsigned int get_random_exponent(void);
char who_first(void);
int play_again(void);
char player_first(void);
char computer_first(void);
void player_move(void);
void player_side(void);
void computer_move(void);
void computer_think_move(void);
char check(void);
char box[3][3], inputChar[10];
int exponent[9], n_integer[9], m_integer[9], sum[9], score[2] = {0, 0};
char winner, answer;
int i, j, a, b, input, again;
int main(void)
{
int y;
again = 'y';
printf("\n\nlet's play tic-tac-toe\n\n");
start_box();
get_random_exponent();
for (i=0 ; i<9 ; i++)
n_integer[i] = (int) pow(2, exponent[i]);
for(i=0 ; i<9 ; i++)
exponent[i] = 0;
get_random_exponent();
for (i=0 ; i<9 ; i++)
m_integer[i] = (int) pow(2, exponent[i]);
for (i=0 ; i<9 ; i++)
sum[i] = n_integer[i] + m_integer[i];
answer = who_first();
if (answer=='r'||answer=='R')
{ score[0] = 0;
score[1] = 0;
main();
}
else if (answer=='d'||answer=='D') main();
else if (answer=='y'||answer=='Y') player_first();
else if (answer=='n'||answer=='N') computer_first();
else
{ printf("\ni guess that's a no.\n\n");
printf("%d", answer);
computer_first();
}
if (winner=='O')
{ score[1]++;
show_box();
printf("\nTHANK YOU LOSER.\n"); }
else if (winner=='X')
{ score[0]++;
show_box();
printf("\nYOU WIN!\n");
}
else if (winner=='/')
{ show_box();
printf("\ndraw. main\n"); }
again = play_again();
do {
main();
} while (again=='y'||again=='Y'||again=='d'||again=='D');
do {
score[0] = 0;
score[1] = 0;
main();
} while (again=='r'||again=='R');
}
void start_box(void)
{
for (i=0 ; i<3 ; i++)
for(j=0 ; j<3 ; j++)
box[i][j] = ' ';
}
void show_box(void)
{
printf("\nyour score:%d\tcomputer's score:%d\n\n\n", score[0], score[1]);
printf("\t#########################\n");
printf("\t# # # #\n");
printf("\t# %c # %c # %c #\n", box[0][0], box[0][1], box[0][2]);
printf("\t# # # #\n");
printf("\t#########################\n");
printf("\t# # # #\tyou = X\n");
printf("\t# %c # %c # %c #\n", box[1][0], box[1][1], box[1][2]);
printf("\t# # # #\tcomputer = O\n");
printf("\t#########################\n");
printf("\t# # # #\n");
printf("\t# %c # %c # %c #\n", box[2][0], box[2][1], box[2][2]);
printf("\t# # # #\n");
printf("\t#########################\n\n\n");
printf("x , y\n");
printf("1 , 1 = %d + %d\n", n_integer[0],m_integer[0]);
printf("1 , 2 = %d + %d\n", n_integer[1],m_integer[1]);
printf("1 , 3 = %d + %d\n", n_integer[2],m_integer[2]);
printf("2 , 1 = %d + %d\n", n_integer[3],m_integer[3]);
printf("2 , 2 = %d + %d\n", n_integer[4],m_integer[4]);
printf("2 , 3 = %d + %d\n", n_integer[5],m_integer[5]);
printf("3 , 1 = %d + %d\n", n_integer[6],m_integer[6]);
printf("3 , 2 = %d + %d\n", n_integer[7],m_integer[7]);
printf("3 , 3 = %d + %d\n", n_integer[8],m_integer[8]);
printf("\n");
for (i=0 ; i<9 ; i++)
printf("%d\n", sum[i]);
}
unsigned int get_random_exponent(void)
{
int a, b, i;
exponent[0] = rand() % 9;
for (i=1 ; i<9 ; i++)
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
for (b=0 ; b<i ; b++)
{ if (a == exponent[b])
{ do
{ a = rand() % 9;
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
} while (a == exponent[b]);
}
}
exponent[i] = a;
}
}
char who_first(void)
{
printf("\nplay first (y/n)? ");
scanf("%c", &answer);
if (answer=='q'||answer=='Q') exit(0);
return answer;
}
int play_again(void)
{
printf("\nplay again (y/n)? ");
scanf("%c", &again);
if (again=='q'||again=='Q') exit(0);
return again;
}
char player_first(void)
{
winner = ' ';
do {
show_box();
player_move(); //player 1
show_box();
winner = check();
if (winner != ' ') return winner;
computer_think_move(); //comp 2
winner = check();
} while (winner == ' ');
return winner;
}
char computer_first(void)
{
winner = ' ';
computer_move(); //comp 1
show_box();
player_move();
if (input==sum[1]||input==sum[3]||input==sum[5]||input==sum[7])
{
if (input==sum[1])
{ i = rand() % 3;
do {
i = rand() % 3;
} while (i==1);
box[0][i] = 'O'; //comp 2
}
else if (input==sum[7])
{ i = rand() % 3;
do {
i = rand() % 3;
} while (i==1);
box[2][i] = 'O';
}
else if (input==sum[3])
{ i = rand() % 3;
do {
i = rand() % 3;
} while (i==1);
box[i][0] = 'O';
}
else
{ i = rand() % 3;
do {
i = rand() % 3;
} while (i==1);
box[i][2] = 'O';
}
show_box();
player_move(); //player 2
player_side(); //computer move 3
show_box();
player_move(); //player 3
}
do {
computer_think_move();
winner = check();
if (winner != ' ') return winner;
show_box();
player_move();
winner = check();
} while (winner == ' ');
return winner;
}
void player_move(void)
{ int r = 114, R = 82, d = 100, D = 68, q = 113 , Q = 81;
printf("input the sum of the integers assigned in the square you want to take: ");
scanf("%d", &input);
if (input==sum[0] && box[0][0]==' ')
{ box[0][0] = 'X';
return; }
else if (input==sum[1] && box[0][1]==' ')
{ box[0][1] = 'X';
return; }
else if (input==sum[2] && box[0][2]==' ')
{ box[0][2] = 'X';
return; }
else if (input==sum[3] && box[1][0]==' ')
{ box[1][0] = 'X';
return; }
else if (input==sum[4] && box[1][1]==' ')
{ box[1][1] = 'X';
return; }
else if (input==sum[5] && box[1][2]==' ')
{ box[1][2] = 'X';
return; }
else if (input==sum[6] && box[2][0]==' ')
{ box[2][0] = 'X';
return; }
else if (input==sum[7] && box[2][1]==' ')
{ box[2][1] = 'X';
return; }
else if (input==sum[8] && box[2][2]==' ')
{ box[2][2] = 'X';
return; }
else
{ printf("wrong input, try again.\n");
player_move();
}
if (input==r|input==R)
{ score[0] = 0;
score[1] = 0;
main();
}
if (input==D||input==d) main();
if (input==Q||input==q) exit(0);
return;
}
void player_side(void)
{
if (box[0][0]=='O' && box[0][1]=='X' && box[2][0]==' ') box[2][0] = 'O';
else if (box[0][0]=='O' && box[1][0]=='X' && box[0][2]==' ') box[0][2] = 'O';
else if (box[0][2]=='O' && box[0][1]=='X' && box[2][2]==' ') box[2][2] = 'O';
else if (box[0][2]=='O' && box[1][2]=='X' && box[0][0]==' ') box[0][0] = 'O';
else if (box[2][0]=='O' && box[2][1]=='X' && box[0][0]==' ') box[0][0] = 'O';
else if (box[2][0]=='O' && box[1][0]=='X' && box[2][2]==' ') box[2][2] = 'O';
else if (box[2][2]=='O' && box[2][1]=='X' && box[0][2]==' ') box[0][2] = 'O';
else if (box[2][2]=='O' && box[1][2]=='X' && box[2][0]==' ') box[2][0] = 'O';
else computer_think_move();
}
void computer_think_move(void)
{
for (i=0; i<3 ; i++)
{ if (box[i][0]==box[i][1] && box[i][2]==' ' && box[i][0]=='O')
{ box[i][2] = 'O';
return; }
else if (box[i][0]==box[i][2] && box[i][1]==' ' && box[i][0]=='O')
{ box[i][1] = 'O';
return; }
else if (box[i][1]==box[i][2] && box[i][0]==' ' && box[i][1]=='O')
{ box[i][0] = 'O';
return; }
else if (box[0][i]==box[1][i] && box[2][i]==' ' && box[0][i]=='O')
{ box[2][i] = 'O';
return; }
else if (box[1][i]==box[2][i] && box[0][i]==' ' && box[1][i]=='O')
{ box[0][i] = 'O';
return; }
else if (box[0][i]==box[2][i] && box[1][i]==' ' && box[0][i]=='O')
{ box[1][i] = 'O';
return; }
}
if (box[0][0]==box[1][1] && box[2][2]==' ' && box[0][0]=='O')
{ box[2][2] = 'O';
return; }
if (box[1][1]==box[2][2] && box[0][0]==' ' && box[1][1]=='O')
{ box[0][0] = 'O';
return; }
if (box[0][2]==box[1][1] && box[2][0]==' ' && box[0][2]=='O')
{ box[2][0] = 'O';
return; }
if (box[1][1]==box[2][0] && box[0][2]==' ' && box[1][1]=='O')
{ box[0][2] = 'O';
return; }
computer_move();
}
void computer_move (void)
{
srand((unsigned int)time((time_t *)NULL));
i = rand() % 3;
j = rand() % 3;
if (box[1][1]==' ') box[1][1] = 'O';
else if (box[0][0]==' '||box[0][2]==' '||box[2][0]==' '||box[2][2]==' ')
{
do {
do {
i = rand() % 3;
} while (i==1);
do {
j = rand() % 3;
} while (j==1);
if (i==0 && (box[0][0]==' '||box[0][2]==' '))
{ do {
j = rand() % 3;
} while (j==1);
}
else if (i==2 && (box[2][0]==' '||box[2][2]==' '))
{ do {
j = rand() % 3;
} while (j==1);
}
} while (box[i][j]!=' ');
box[i][j] = 'O';
return;
}
else if (box[0][1]==' '||box[1][0]==' '||box[1][2]==' '||box[2][1]==' ')
{ do {
i = rand() % 3;
j = rand() % 3;
if (i==0) j = 1;
else if (i==2) j = 1;
else
do {
j = rand() % 3;
} while (j==1);
} while (box[i][j]!=' ');
box[i][j] = 'O';
return;
}
}
char check(void)
{ int empty = 0;
for (i=0 ; i<3 ; i++)
if (box[i][0]==box[i][1] && box[i][1]==box[i][2]) return box[i][0];
for (i=0 ; i<3 ; i++)
if (box[0][i]==box[1][i] && box[1][i]==box[2][i]) return box[0][i];
if (box[0][0]==box[1][1] && box[1][1]==box[2][2]) return box[0][0];
if (box[0][2]==box[1][1] && box[1][1]==box[2][0]) return box[0][2];
for (i=0 ; i<3 ; i++)
for (j=0 ; j<3 ; j++)
if (box[i][j]==' ') empty++;
if (empty==0) return '/';
return ' ';
}
