matej-xox.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int x,y,n;
char** ploca;

char** arraymalloc(size_t width, size_t height)
{
    int i;
    /* Inicijaliziraj pokazivače na NULL! */
    char** array = calloc(height, sizeof(char*));
    if (array == NULL)
        return NULL;

    for (i = 0; i < height; ++i)
    {
        array[i] = malloc(width);
        if (array[i] == NULL)
            goto error;
    }
    return array;

error:
    for (i = 0; i < height; ++i)
        free(array[i]);
    free(array);
    return NULL;
}

void arraymemset(char** array, int c, size_t width, size_t height)
{
	int i;
	for (i = 0; i < height; ++i)
		memset(array[i], c, width);
}

void init()
{
		scanf("%d%d", &x, &y);
		ploca = arraymalloc(x, y);
		arraymemset(ploca, '.', x, y);
		scanf("%d", &n);
}
		

void arrayfree(char** array, size_t height)
{
    int i;
    if (array == NULL)
        return;

    for (i = 0; i < height; ++i)
        free(array[i]);
    free(array);
}

void draw()
{
	int i,j;
	for (i = 0; i<y; ++i)
	{
		for (j = 0; j<x; ++j)
			putchar(ploca[i][j]);
		putchar('\n');
	}
}

int diagonal(char w)
{
	int i,j,h,s=0;
	for (i=(x-1); i>=0; --i)
	{
		for (h=i, j=0; h<x && j<y; ++h, ++j)
		{
			if (ploca[j][h] == w)
				++s;
		}
		if (s == n)
			return 0;
		s=0;
		for (h=i, j=0; h>=0 && j<y; --h, ++j)
		{
			if (ploca[j][h] == w)
				++s;
		}
		if (s == n)
			return 0;
		s=0;
	}
	for (j=(y-1); j>=0; --j)
	{
		for (h=j, i=0; h<y && i<x; ++h, ++i)
		{
			if (ploca[h][i] == w)
				++s;
		}
		if (s == n)
			return 0;
		s=0;
		for (h=j, i=0; h>=0 && i<x; --h, ++i)
		{
			if (ploca[h][i] == w)
				++s;
		}
		if (s == n)
			return 0;
		s=0;
	}
	return 1;
}
int wincheck(char w)
{
	int i,j,s=0;
	for (i=0; i<y; ++i)
	{
		for(j=0; j<x; ++j)
		{
			if(ploca[i][j] == w)
				s++;
		}
		if(s == n)
			return 0;
		s=0;
	}
	for (i=0; i<x; ++i)
	{
		for(j=0; j<y; ++j)
		{
			if(ploca[j][i] == w)
				s++;
		}
		if(s == n)
			return 0;
		s=0;
	}
	diagonal(w);
		
}
void play()
{
	int i,j,s=0;
	char p;
	while(1)
	{
		scanf("%d%d", &i, &j);
		if (i>=x || j>=y || i<0 || j<0 || ploca[j][i]!='.')
			continue;
			
		if (s++ % 2 == 0)
			p='x';
		else
			p='o';	
		ploca[j][i]=p;
		draw();
		if (wincheck(p) == 0)
		{
			printf("Pobjedio je %c. \n", p);
			return;
		}	
	}
}

int main()
{
	init();
	draw();
	play();
	arrayfree(ploca, y);
	return 0;
}