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add day 8 and add free on day 7

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tomoron
2024-12-08 13:49:16 +01:00
parent c2acedfa11
commit 6d6bad0cbe
7 changed files with 389 additions and 2 deletions
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119
2024/8/part2.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* part2.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tomoron <tomoron@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/17 23:03:36 by tomoron #+# #+# */
/* Updated: 2024/12/08 13:37:39 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
#include <stdlib.h>
#include "libft/libft.h"
static long int get_nb_antinode_char(char **map, char **locations, int limits[2], int ref_pos[2])
{
char c;
long int res;
int pos[2];
int np[2];
int diff[2];
res = 0;
c = map[ref_pos[0]][ref_pos[1]];
pos[0] = 0;
while(map[pos[0]])
{
pos[1] = 0;
while(map[pos[0]][pos[1]])
{
if(ref_pos[0] != pos[0] && ref_pos[1] != pos[1] && map[pos[0]][pos[1]] == c)
{
diff[0] = pos[0] - ref_pos[0];
diff[1] = pos[1] - ref_pos[1];
np[0] = ref_pos[0];
np[1] = ref_pos[1];
while(np[0] >= 0 && np[0] < limits[0] && np[1] >= 0 && np[1] < limits[1])
{
if(locations[np[0]][np[1]] != '#')
res++;
locations[np[0]][np[1]] = '#';
np[0] -= diff[0];
np[1] -= diff[1];
}
np[0] = pos[0];
np[1] = pos[1];
while(np[0] >= 0 && np[0] < limits[0] && np[1] >= 0 && np[1] < limits[1])
{
if(locations[np[0]][np[1]] != '#')
res++;
locations[np[0]][np[1]] = '#';
np[0] += diff[0];
np[1] += diff[1];
}
}
pos[1]++;
}
pos[0]++;
}
map[ref_pos[0]][ref_pos[1]] = '.';
return(res);
}
static long int find_antinode(char **map, int height, int width)
{
int x;
int y;
long int res;
char **locations;
y = 0;
res = 0;
locations = malloc(height * sizeof(char *));
while(y < height)
{
locations[y] = malloc(width);
ft_memset(locations[y], '.', width);
y++;
}
y = 0;
while(map[y])
{
x = 0;
while(map[y][x])
{
if(map[y][x] != '.')
res += get_nb_antinode_char(map, locations, (int [2]){height, width}, (int [2]){y, x});
x++;
}
y++;
}
y = 0;
while(y < height)
{
free(locations[y]);
y++;
}
free(locations);
return(res);
}
long int resolve_part2(char *input, char **split)
{
(void)input;
int height;
int width;
long int res;
height = 0;
while(split[height])
height++;
width = 0;
while(split[0][width])
width++;
res = find_antinode(split, height, width);
return(res);
}