Day 1 in deno wooo

.gitignore

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+**/input.txt

.vscode/settings.json

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+{
+    "deno.enable": true
+}

day1/part1.ts

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+const input = await Deno.readTextFile("./input.txt").then(
+    (f) =>
+        f.split("\n").reduce<[number[], number[]]>(
+            (
+                acc,
+                cur,
+            ) => [[...acc[0], +cur.split("   ")[0]], [
+                ...acc[1],
+                +cur.split("   ")[1],
+            ]],
+            [[], []],
+        ),
+).then(([first, second]) => [first.toSorted(), second.toSorted()]).then((
+    [first, second],
+) => first.reduce((acc, cur, i) => acc + Math.abs(cur - second[i]), 0));
+console.log("Answer = " + input);

day1/part2.ts

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+const input = await Deno.readTextFile("./input.txt").then(
+    (f) =>
+        f.split("\n").reduce<[number[], number[]]>(
+            (
+                acc,
+                cur,
+            ) => [[...acc[0], +cur.split("   ")[0]], [
+                ...acc[1],
+                +cur.split("   ")[1],
+            ]],
+            [[], []],
+        ),
+).then(([first, second]) => [
+    first,
+    second.reduce((acc, cur) => {
+        if (acc[cur] !== undefined) acc[cur]++;
+        else acc[cur] = 1;
+
+        return acc;
+    }, {} as Record<number, number>),
+]).then(([first, map]) =>
+    first.reduce((acc, cur) => acc + ((map[cur] ?? 0) * cur), 0)
+);
+console.log("Answer = " + input);