garbage group

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   endgame.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/20 16:25:55 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 23:22:17 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

void		ft_putchar(char c);

void		endgame(int **tb)
{
	short	i;
	short	j;

	i = 0;
	j = 0;
	while (0 <= i && i <= 8)
	{
		j = 0;
		while (0 <= j && j <= 8)
		{
			ft_putchar(tb[i][j] + '0');
			ft_putchar(' ');
			j++;
		}
		ft_putchar('\n');
		i++;
	}
	return ;
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   error.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/20 16:02:15 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 23:22:08 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

short	error(int argc, char **argv)
{
	int	i;
	int	j;

	i = 1;
	j = 0;
	if (argc != 10)
		return (1);
	while (i != 10)
	{
		while (argv[i][j] != '\0')
		{
			if (argv[i][j] == '.' || ('0' <= argv[i][j] && argv[i][j] <= '9'))
				j++;
			else
				return (1);
		}
		if (j != 9)
			return (1);
		j = 0;
		i++;
	}
	return (0);
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_putchar.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/15 10:43:56 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 20:53:55 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <unistd.h>

void	ft_putchar(char c)
{
	write(1, &c, 1);
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_putstr.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/15 13:07:39 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 20:57:05 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

void	ft_putchar(char c);

void	ft_putstr(char *str)
{
	int i;

	i = 0;
	while (str[i] != '\0')
		ft_putchar(str[i++]);
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_sudoku.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ssonu <marvin@42.fr>                       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/21 17:02:49 by ssonu             #+#    #+#             */
/*   Updated: 2019/07/21 23:28:46 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

int		check(int y, int x, int z, int **tb)
{
	int		i;
	int		j;
	int		a;
	int		b;

	i = 0;
	j = 0;
	while (j >= 0 && j <= 8)
		if (tb[y][j++] == z)
			return (0);
	while (i >= 0 && i <= 8)
		if (tb[i++][x] == z)
			return (0);
	i = 0;
	j = 0;
	a = (y / 3) * 3;
	b = (x / 3) * 3;
	while (i < 3)
	{
		while (j < 3)
			if (tb[a + i][b + j++] == z)
				return (0);
		i++;
	}
	return (1);
}

int		ft_sudoku(int **tb, int num)
{
	int		y;
	int		x;
	int		z;
	int		flag;

	y = num / 9;
	x = num % 9;
	if (num >= 81)
		return (1);
	z = 1;
	if (tb[y][x] != 0)
		return (ft_sudoku(tb, num + 1));
	while (z <= 9)
	{
		flag = check(y, x, z, tb);
		if (flag == 1)
		{
			tb[y][x] = z;
			if (ft_sudoku(tb, num + 1))
				return (1);
			tb[y][x] = 0;
		}
		z++;
	}
	return (0);
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   main.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/20 20:36:52 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 23:27:58 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <unistd.h>
#include <stdlib.h>

short	error(int argc, char **argv);
void	ft_putchar(char c);
void	ft_putstr(char *str);
int		**startgame(char **argv);
int		ft_sudoku(int **tb, int num);
void	endgame(int **tb);

int		main(int argc, char **argv)
{
	int		**tb;
	int		a;

	if (error(argc, argv) == 1)
	{
		ft_putstr("Error\n");
		return (0);
	}
	tb = startgame(argv);
	a = ft_sudoku(tb, 0);
	if (a == 1)
	{
		endgame(tb);
	}
	else
		ft_putstr("Error\n");
	return (0);
}
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   startgame.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hschou <hschou@student.42.us.org>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/20 17:40:19 by hschou            #+#    #+#             */
/*   Updated: 2019/07/21 23:23:28 by ssonu            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>

int		str_len(char *str)
{
	int		i;

	i = 0;
	while (str[i] != '\0')
	{
		i++;
	}
	return (i);
}

int		**startgame(char **argv)
{
	short	i;
	short	j;
	int		**tb;

	tb = (int **)malloc(sizeof(int *) * 9);
	i = 0;
	while (i < 9)
	{
		if (str_len(argv[i + 1]) != 9)
			return (NULL);
		tb[i] = (int *)malloc(sizeof(int) * 9);
		j = 0;
		while (j < 9)
		{
			if (argv[i + 1][j] == '.')
				tb[i][j] = 0;
			else if (argv[i + 1][j] >= '1' && argv[i + 1][j] <= '9')
				tb[i][j] = argv[i + 1][j] - '0';
			else
				return (NULL);
			j++;
		}
		i++;
	}
	return (tb);
}