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day 2 (refactor)

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Andres
2024-12-03 12:37:07 +01:00
parent e448cf2671
commit 8bf91cfc9a
1 changed files with 7 additions and 28 deletions
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35
day-2/day2.ts
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@@ -1,3 +1,5 @@
import * as R from "remeda";
export async function day2(input: string) {
const lines = input.split("\n");
let count = 0;
@@ -44,33 +46,10 @@ export async function day2part2(input: string) {
}
function isSafe(levels: number[]) {
let increasing = null;
let safe = true;
const diffs = R.zip(levels, levels.slice(1)).map(([a, b]) => a - b);
for (let i = 0; i < levels.length - 1; i++) {
const current = levels[i];
const next = levels[i + 1];
const diff = Math.abs(next - current);
if (diff > 3 || diff < 1) {
safe = false;
break;
}
if (i === 0) {
increasing = next > current;
continue;
}
if (increasing && next <= current) {
safe = false;
break;
}
if (!increasing && next >= current) {
safe = false;
break;
}
}
return safe;
return (
diffs.every((d) => 1 <= d && d <= 3) ||
diffs.every((d) => -1 >= d && d >= -3)
);
}