ringofstorms/advent_of_code
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RingOfStorms (Joshua Bell) 2023-12-14 03:49:16 -06:00
parent 0cb8044cde
commit 0caad8b5b0
1 changed files with 5 additions and 1 deletions
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6
src/bin/day14.rs
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@ -175,7 +175,11 @@ fn part2(input: String) -> Result<usize> {
scores.push(dish.calculate_north_load()); scores.push(dish.calculate_north_load());
if let Some(repeated_index) = seen.get(&dish) { if let Some(repeated_index) = seen.get(&dish) {
// Figure out final score based on sliding window of known scores within the // Figure out final score based on sliding window of known scores within the
// repeated pattern // repeated pattern:
//
// (cycles - repeated index) gives us the remaining times we need to run through. We
// then get the remainder of that divided by the difference of the current index minus
// all seen (total repeating count).
answer = scores answer = scores
[repeated_index - 1 + (cycles - repeated_index) % (seen.len() - repeated_index)]; [repeated_index - 1 + (cycles - repeated_index) % (seen.len() - repeated_index)];
break; break;