day 11

.prettierignore

@@ -1,7 +1,7 @@
 .gitignore
 input
 .prettierignore
-sample
+sample*
 input
 *.t
 *.pm

2022/11/foo.bench.js

@@ -0,0 +1,9 @@
+import { bench, test, expect, describe } from "vitest";
+
+import { expectSolution } from "../01/main.js";
+import part1, { sample, puzzleInput } from "./part1.js";
+import part2 from "./part2.js";
+
+bench("sample", () => {
+  part2(puzzleInput);
+});

2022/11/part1.js

@@ -37,35 +37,35 @@ export const puzzleInput = readInput(import.meta.url, "input");
 export const sample = readInput(import.meta.url, "sample");
 
 const playTurn = (monkeys, monkey) => {
-    monkey.inspections += monkey.items.length;
+  monkey.inspections += monkey.items.length;
 
-    monkey.items = monkey.items.map( i => monkey.operation(i) );
+  monkey.items = monkey.items.map((i) => monkey.operation(i));
 
-    monkey.items = monkey.items.map( i => Math.floor(i/3) );
+  monkey.items = monkey.items.map((i) => Math.floor(i / 3));
 
+  monkey.items.forEach((i) => {
+    monkeys[i % monkey.divisible ? monkey.ifFalse : monkey.ifTrue].items.push(
+      i
+    );
+  });
 
-    monkey.items.forEach( i => {
-        monkeys[(i % monkey.divisible) ? monkey.ifFalse : monkey.ifTrue
-        ].items.push(i)
-    } )
+  monkey.items = [];
 
-    monkey.items = [];
-
-    return;
+  return;
 };
 
 const playRound = (monkeys) => {
-    monkeys.forEach( monkey => playTurn(monkeys,monkey) );
-    return monkeys;
-}
+  monkeys.forEach((monkey) => playTurn(monkeys, monkey));
+  return monkeys;
+};
 
 export default R.createPipe(
-    R.clone,
-    (monkeys) => R.times(20, () => playRound(monkeys)),
-    R.last(),
-    R.map( R.prop('inspections') ),
-    R.sortBy( R.identity ),
-    R.reverse,
-    R.take(2),
-    R.reduce( (a,b) => a * b, 1 )
-)
+  R.clone,
+  (monkeys) => R.times(20, () => playRound(monkeys)),
+  R.last(),
+  R.map(R.prop("inspections")),
+  R.sortBy(R.identity),
+  R.reverse,
+  R.take(2),
+  R.reduce((a, b) => a * b, 1)
+);

2022/11/part2.js

@@ -1,37 +1,34 @@
 import * as R from "remeda";
 
-const playTurn = (monkeys, monkey) => {
-    const max = monkeys.map( R.prop('divisible') ).reduce(
-        (a,b) => a * b
-    );
+const playTurn = (max, monkeys, monkey) => {
+  monkey.inspections += monkey.items.length;
 
-    monkey.inspections += monkey.items.length;
+  monkey.items
+    .map((i) => monkey.operation(i) % max)
+    .forEach((i) => {
+      monkeys[i % monkey.divisible ? monkey.ifFalse : monkey.ifTrue].items.push(
+        i
+      );
+    });
 
-    monkey.items = monkey.items.map( i => monkey.operation(i) );
-    monkey.items = monkey.items.map( i => i % max );
+  monkey.items = [];
 
-    monkey.items.forEach( i => {
-        monkeys[(i % monkey.divisible) ? monkey.ifFalse : monkey.ifTrue
-        ].items.push(i)
-    } )
-
-    monkey.items = [];
-
-    return;
+  return monkey;
 };
 
-const playRound = (monkeys) => {
-    monkeys.forEach( monkey => playTurn(monkeys,monkey) );
-    return monkeys;
-}
+const genPlayRound = (monkeys) => {
+  const max = monkeys.map(R.prop("divisible")).reduce((a, b) => a * b);
+
+  return () => monkeys.map((monkey) => playTurn(max, monkeys, monkey));
+};
 
 export default R.createPipe(
-    R.clone,
-    (monkeys) => R.times(10000, () => playRound(monkeys)),
-    R.last(),
-    R.map( R.prop('inspections') ),
-     R.sortBy( R.identity ),
-     R.reverse,
-     R.take(2),
-     R.reduce( (a,b) => a * b, 1 )
-)
+  R.clone,
+  (monkeys) => R.times(10000, genPlayRound(monkeys)),
+  R.last(),
+  R.map(R.prop("inspections")),
+  R.sortBy(R.identity),
+  R.reverse,
+  R.take(2),
+  R.reduce((a, b) => a * b, 1)
+);

2022/11/test.js

@@ -5,21 +5,21 @@ import part1, { sample, puzzleInput } from "./part1.js";
 import part2 from "./part2.js";
 
 describe("part 1", () => {
-    test( "readInput", () => {
-       expect(sample[0]).toMatchObject({divisible: 23, items: [ 79, 98 ]});
-    });
-    test( "sample", () => {
-        expect(part1(sample)).toEqual(10605);
-    });
+  test("readInput", () => {
+    expect(sample[0]).toMatchObject({ divisible: 23, items: [79, 98] });
+  });
+  test("sample", () => {
+    expect(part1(sample)).toEqual(10605);
+  });
   test("solution", () => {
     expectSolution(part1(puzzleInput)).toEqual(58794);
   });
 });
 
 describe.only("part 2", () => {
-    test.only( "sample", () => {
-        expect(part2(sample)).toEqual(2713310158);
-    });
+  test.skip("sample", () => {
+    expect(part2(sample)).toEqual(2713310158);
+  });
   test("solution", () => {
     expectSolution(part2(puzzleInput)).toBeLessThan(32239420356);
     expectSolution(part2(puzzleInput)).toEqual(20151213744);

Taskfile.yaml

@@ -29,6 +29,7 @@ tasks:
 
   download:
     cmds:
+      - hygen day new --day {{.DAY_FORMATTED}}
       - aoc download -d {{.DAY}} -o -p 2022/{{.DAY_FORMATTED}}/puzzle.md -i 2022/{{.DAY_FORMATTED}}/input
 
   default: