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Fix bug in day 6

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This commit is contained in:
hal8174 2024-12-06 15:56:12 +01:00
parent 624b34d72e
commit 041a4259de
1 changed files with 3 additions and 3 deletions
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6
src/bin/06.rs
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@ -13,7 +13,7 @@ fn find_loop(mut pos: (usize, usize), mut dir: usize, map: &[Vec<bool>]) -> bool
.filter(|&x| x < map[0].len()), .filter(|&x| x < map[0].len()),
pos.1 pos.1
.checked_add_signed(DIR_MAP[dir].1) .checked_add_signed(DIR_MAP[dir].1)
.filter(|&y| y < map[0].len()), .filter(|&y| y < map.len()),
) { ) {
visited.insert((pos, dir)); visited.insert((pos, dir));
if map[next_pos.1][next_pos.0] { if map[next_pos.1][next_pos.0] {
@ -66,7 +66,7 @@ fn main() {
.filter(|&x| x < map[0].len()), .filter(|&x| x < map[0].len()),
pos.1 pos.1
.checked_add_signed(DIR_MAP[dir].1) .checked_add_signed(DIR_MAP[dir].1)
.filter(|&y| y < map[0].len()), .filter(|&y| y < map.len()),
) { ) {
if map[next_pos.1][next_pos.0] { if map[next_pos.1][next_pos.0] {
dir = (dir + 1) % 4; dir = (dir + 1) % 4;
@ -81,7 +81,7 @@ fn main() {
let mut count = 0; let mut count = 0;
for y in 0..map.len() { for y in 0..map.len() {
for x in 0..map[0].len() { for x in 0..map[0].len() {
if !map[y][x] { if !map[y][x] && (x, y) != start_pos {
map[y][x] = true; map[y][x] = true;
if find_loop(start_pos, 0, &map) { if find_loop(start_pos, 0, &map) {
count += 1; count += 1;