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add optimisations

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tomoron
2024-12-07 01:32:31 +01:00
parent 2261742442
commit 777f37ca17
1 changed files with 12 additions and 6 deletions
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18
2024/6/part2.c
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@ -6,7 +6,7 @@
/* By: tomoron <tomoron@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/17 23:03:36 by tomoron #+# #+# */
/* Updated: 2024/12/06 13:04:52 by tomoron ### ########.fr */
/* Updated: 2024/12/07 01:26:11 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
@ -77,7 +77,7 @@ static void next_dir(int *dir)
}
}
static void move(char **map, t_guard *guard)
static void move(char **map, t_guard *guard, int replace)
{
int nx;
int ny;
@ -87,9 +87,11 @@ static void move(char **map, t_guard *guard)
if(is_on_map(map, nx, ny) && map[ny][nx] == '#')
{
next_dir(guard->dir);
move(map, guard);
move(map, guard, replace);
return ;
}
if(replace)
map[guard->pos[0]][guard->pos[1]] = 'X';
guard->pos[0] = ny;
guard->pos[1] = nx;
}
@ -126,8 +128,8 @@ int is_loop(char **map, t_guard start, int x, int y)
map[x][y] = '#';
while(is_on_map(map, guard.pos[1], guard.pos[0]))
{
move(map, &guard);
if(!memcmp(&guard, &start, sizeof(t_guard)) || i++ > 50000)
move(map, &guard, 0);
if(i++ > 6000)
{
map[x][y] = '.';
return(1);
@ -143,9 +145,13 @@ long int resolve_part2(char *input, char **split)
int x;
int y;
t_guard guard;
t_guard tmp;
long int res;
find_guard(split, &guard);
tmp = guard;
while(is_on_map(split, tmp.pos[1], tmp.pos[0]))
move(split, &tmp, 1);
y = 0;
res = 0;
while(split[y])
@ -153,7 +159,7 @@ long int resolve_part2(char *input, char **split)
x = 0;
while(split[y][x])
{
if(split[x][y] == '.' && is_loop(split, guard, x, y))
if(split[x][y] == 'X' && is_loop(split, guard, x, y))
res++;
x++;
}