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d23ce26d0e
...
bef73c0cb5
6 changed files with 98 additions and 39 deletions
1
.gitignore
vendored
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1
.gitignore
vendored
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**/input.txt
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9
aoc
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9
aoc
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#!/usr/bin/env zsh
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setopt extendedglob
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cd "day$1"
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# Handle deno days
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if [[ -n *.ts(#qN) ]]; then
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deno eval --ext=ts "await import('./part$2.ts').then(m => m.solve()).then(s => console.log('The solution is', s))"
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fi
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@ -1,16 +1,18 @@
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const input = await Deno.readTextFile("./input.txt").then(
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export async function solve() {
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return await Deno.readTextFile("./input.txt").then(
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(f) =>
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f.split("\n").reduce<[number[], number[]]>(
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(
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acc,
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cur,
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) => [[...acc[0], +cur.split(" ")[0]], [
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...acc[1],
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+cur.split(" ")[1],
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]],
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) => [
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[...acc[0], +cur.split(" ")[0]],
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[...acc[1], +cur.split(" ")[1]],
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],
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[[], []],
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),
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).then(([first, second]) => [first.toSorted(), second.toSorted()]).then((
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[first, second],
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) => first.reduce((acc, cur, i) => acc + Math.abs(cur - second[i]), 0));
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console.log("Answer = " + input);
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).then(([first, second]) => [first.toSorted(), second.toSorted()]).then(
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([first, second]) =>
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first.reduce((acc, cur, i) => acc + Math.abs(cur - second[i]), 0),
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);
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}
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@ -1,16 +1,17 @@
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const input = await Deno.readTextFile("./input.txt").then(
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export async function solve() {
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return await Deno.readTextFile("./input.txt").then(
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(f) =>
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f.split("\n").reduce<[number[], number[]]>(
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(
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acc,
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cur,
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) => [[...acc[0], +cur.split(" ")[0]], [
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...acc[1],
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+cur.split(" ")[1],
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]],
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) => [
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[...acc[0], +cur.split(" ")[0]],
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[...acc[1], +cur.split(" ")[1]],
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],
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[[], []],
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),
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).then(([first, second]) => [
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).then(([first, second]) => [
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first,
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second.reduce((acc, cur) => {
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if (acc[cur] !== undefined) acc[cur]++;
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@ -18,7 +19,7 @@ const input = await Deno.readTextFile("./input.txt").then(
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return acc;
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}, {} as Record<number, number>),
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]).then(([first, map]) =>
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] as const).then(([first, map]) =>
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first.reduce((acc, cur) => acc + ((map[cur] ?? 0) * cur), 0)
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);
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console.log("Answer = " + input);
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);
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}
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17
day2/part1.ts
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17
day2/part1.ts
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export async function solve() {
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return await Deno.readTextFile("./input.txt").then((f) =>
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f.split("\n").filter((l) => {
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const report = l.split(" ").map((s) => +s);
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const increasing = report[0] < report[1];
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let last = report[0];
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for (const number of report.slice(1)) {
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if (number > last && !increasing) return false;
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if (number < last && increasing) return false;
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if (Math.abs(number - last) < 1 || Math.abs(number - last) > 3) return false;
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last = number;
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}
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return true;
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}).reduce(acc => acc + 1, 0)
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);
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}
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29
day2/part2.ts
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29
day2/part2.ts
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export async function solve() {
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return await Deno.readTextFile("./input.txt").then((f) =>
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f.split("\n").filter((l) => {
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const report = l.split(" ").map((s) => +s);
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for (let i = 0; i < report.length; i++) {
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const sliced = [
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...report.slice(0, i),
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...report.slice(i + 1, report.length),
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];
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const increasing = sliced[0] < sliced[1];
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let last = sliced[0];
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let failed = false;
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for (const number of sliced.slice(1)) {
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if (number > last && !increasing) failed = true;
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if (number < last && increasing) failed = true;
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if (
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Math.abs(number - last) < 1 ||
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Math.abs(number - last) > 3
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) failed = true;
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last = number;
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}
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if (failed) continue;
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else return true;
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}
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return false;
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}).reduce((acc) => acc + 1, 0)
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);
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}
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