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Disturbingly simple optimization

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Bert Peters
2022-12-18 22:57:19 +01:00
parent 483aeb7e4d
commit a3f9edd48d
1 changed files with 1 additions and 1 deletions
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2022/src/day17.rs
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@@ -35,7 +35,7 @@ fn collides(shape: &[&[bool]], cavern: &IndexSet, x: usize, y: usize) -> bool {
return true;
}
for (col, &on) in line.iter().enumerate() {
for (col, &on) in line.iter().enumerate().rev() {
if on && cavern.contains((y - row) * WIDTH + x + col) {
return true;
}