chore: migrate lots of my repos into the scratchpad

Author: YOU54F

adventofcode/.vscode/settings.json

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+{
+    "deno.enable": true,
+    "deno.lint": true,
+    "deno.unstable": true
+}

adventofcode/README.md

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+### Prerequisities
+
+- `deno` is installed to the command line 
+
+### Running
+
+- `cd` to the required day (number) and part (A|B)
+    - `cd day3/partA`
+    -  Note some days are not split by part so just `cd day1`
+- Run `deno test --allow-read`
+- See command line for test output
+
+### Results
+______
+
+Day | A | B
+--- | --- | ---
+1 | ✓  | ✓
+2 | ✓  | ✓
+3 | ✓  | ✗
+4 | ✓  | ✗
+5 | ?| ?
+6 | ?| ?
+7 | ?| ?
+8 | ?| ?
+9 | ?| ?
+10 | ?| ?
+11 | ?| ?
+12 | ?| ?
+13 | ?| ?
+14 | ?| ?
+15 | ?| ?
+16 | ?| ?
+17 | ?| ?
+18 | ?| ?
+19 | ?| ?
+20 | ?| ?
+21 | ?| ?
+22 | ?| ?
+23 | ?| ?
+24 | ?| ?

adventofcode/day1/day1.test.ts

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+import {
+  beforeAll,
+  describe,
+  expect,
+  it,
+  run,
+} from "https://deno.land/x/tincan/mod.ts";
+import { depthMeasurer, slidingWindowMeasurer } from "./day1.ts";
+
+const inputExample = [199, 200, 208, 210, 200, 207, 240, 269, 260, 263];
+
+describe("advent of code day 1 - part 1", () => {
+  let depths: number[];
+  beforeAll(async () => {
+    const input = await Deno.readTextFile("depths.txt");
+    const splitInput = input.split("\n");
+    depths = splitInput.map(Number);
+  });
+  describe("example", () => {
+    it("should count the number of times a depth measurement increases", () => {
+      expect(depthMeasurer(inputExample)).toBe(7);
+    });
+  });
+
+  describe("exercise", () => {
+    it("should count the number of times a depth measurement increases", () => {
+      expect(depthMeasurer(depths)).toBe(1832);
+    });
+  });
+});
+
+describe("advent of code day 1 - part 2", () => {
+  let depths: number[];
+  beforeAll(async () => {
+    const input = await Deno.readTextFile("depths.txt");
+    const splitInput = input.split("\n");
+    depths = splitInput.map(Number);
+  });
+  describe("example", () => {
+    it("should count the number of times a depth measurement increases", () => {
+      expect(slidingWindowMeasurer(inputExample)).toBe(5);
+    });
+  });
+
+  describe("exercise", () => {
+    it("should count the number of times a window measurement increases", () => {
+      expect(slidingWindowMeasurer(depths)).toBe(1858);
+    });
+  });
+});
+
+run();

adventofcode/day1/day1.ts

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+export const depthMeasurer = (a: number[]): number => {
+  let count = 0;
+  for (let i = 0; i < a.length; i++) {
+    if (a[i] > a[i - 1]) {
+      count++;
+    }
+  }
+  return count;
+};
+
+export const slidingWindowMeasurer = (a: number[]): number => {
+  let count = 0;
+  for (let i = 0; i < a.length; i++) {
+    if (a[i] + a[i + 1] + a[i + 2] < a[i + 1] + a[i + 2] + a[i + 3]) {
+      count++;
+    }
+  }
+  return count;
+};