advent-of-code/2023
advent-of-code/2023
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day(12): shift the difference by one

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Signed-off-by: Matej Focko <mfocko@redhat.com>
This commit is contained in:
Matej Focko 2023-12-13 21:38:54 +01:00
parent 327a2d1df4
commit a41963a338
Signed by: mfocko
GPG key ID: 7C47D46246790496
1 changed files with 4 additions and 4 deletions
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8
src/bin/day13.rs
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@ -24,8 +24,8 @@ impl Pattern {
.find(|&x| {
let d = min(x + 1, self.map[0].len() - x - 1);
iproduct!(0..self.map.len(), (0..d))
.filter(|&(y, dx)| self.map[y][x - dx] != self.map[y][x + dx + 1])
iproduct!(0..self.map.len(), (1..=d))
.filter(|&(y, dx)| self.map[y][x + 1 - dx] != self.map[y][x + dx])
.count()
== allowed_error
})
@ -37,8 +37,8 @@ impl Pattern {
.find(|&y| {
let d = min(y + 1, self.map.len() - y - 1);
iproduct!(0..self.map[y].len(), (0..d))
.filter(|&(x, dy)| self.map[y - dy][x] != self.map[y + dy + 1][x])
iproduct!(0..self.map[y].len(), (1..=d))
.filter(|&(x, dy)| self.map[y + 1 - dy][x] != self.map[y + dy][x])
.count()
== allowed_error
})