2024 6

2024/06/runner.ts

@@ -0,0 +1,29 @@
+import { readFile } from "fs/promises";
+import { taskOne, taskTwo } from "./task";
+
+async function main() {
+    let lastArgument = process.argv.pop() as string;
+    let taskNumber = 1;
+    let isTest = false;
+
+    if (lastArgument === "test") {
+        isTest = true;
+        taskNumber = parseInt(process.argv.pop() as string);
+    } else {
+        taskNumber = parseInt(lastArgument)
+    }
+
+    const fileToLoad = isTest ? "test.in" : "solve.in";
+    const fileContents = await readFile(fileToLoad, "utf-8")
+
+    const lines = fileContents.split("\n");
+
+    if (taskNumber === 1) {
+        await taskOne(lines);
+    }
+    if (taskNumber === 2) {
+        await taskTwo(lines);
+    }
+}
+
+void main();

2024/06/task.ts

@@ -0,0 +1,65 @@
+import {ComplexNumber} from '../../base/math'
+
+export async function taskOne(input: string[]): Promise<void> {
+    const pos = new Set<string>()
+    const guardDir = new ComplexNumber(-1,0)
+    let guard = new ComplexNumber(0,0)
+    for (let y = 0; y < input.length; y++) {
+        for (let x = 0; x < input[0].length; x++) {
+            if (input[y][x] == '^') guard = new ComplexNumber(y,x)
+        }
+    }
+    while(true) {
+        pos.add(guard.rel + '-' + guard.img)
+        const newPos = guard.add(guardDir)
+        if (!(newPos.rel < input.length && newPos.rel >= 0 && newPos.img < input[0].length && newPos.img >= 0)) break
+        if (input[newPos.rel][newPos.img] == '#') guardDir.mulAdd(ComplexNumber.fromImg(-1))
+        else guard = newPos
+    }
+    console.log(pos.size)
+}
+
+export async function taskTwo(input: string[]): Promise<void> {
+    let count = 0
+    let guardStart = new ComplexNumber(0,0)
+    for (let y = 0; y < input.length; y++) {
+        for (let x = 0; x < input[0].length; x++) {
+            if (input[y][x] == '^') guardStart = new ComplexNumber(y,x)
+        }
+    }
+    const pos = new Set<string>()
+    const guardDir = new ComplexNumber(-1,0)
+    let guard = guardStart.add(new ComplexNumber(0,0))
+    while(true) {
+        pos.add(guard.rel + '-' + guard.img)
+        const newPos = guard.add(guardDir)
+        if (!(newPos.rel < input.length && newPos.rel >= 0 && newPos.img < input[0].length && newPos.img >= 0)) break
+        if (input[newPos.rel][newPos.img] == '#') guardDir.mulAdd(ComplexNumber.fromImg(-1))
+        else guard = newPos
+    }
+    const tries = Array.from(pos).map(i => i.split('-').map(Number))
+
+    for (const t of tries) {
+        const x = t[1]
+        const y = t[0]
+        if (input[y][x] == '#') continue
+        const pos = new Set<string>()
+        const guardDir = new ComplexNumber(-1,0)
+        let guard = guardStart.add(new ComplexNumber(0,0))
+        while(true) {
+            const k = guard.rel + '-' + guard.img + '-' + guardDir.rel + '-' + guardDir.img
+            if (pos.has(k)) {
+                count++
+                break
+            }
+            pos.add(k)
+            const newPos = guard.add(guardDir)
+            if (!(newPos.rel < input.length && newPos.rel >= 0 && newPos.img < input[0].length && newPos.img >= 0)) {
+                break
+            }
+            if (input[newPos.rel][newPos.img] == '#' || (newPos.rel == y && newPos.img == x)) guardDir.mulAdd(ComplexNumber.fromImg(-1))
+            else guard = newPos
+        }
+    }
+    console.log(count)
+}

2024/README.md

@@ -1,10 +1,11 @@
 # 2024
-![](https://img.shields.io/badge/stars%20⭐-10-yellow)
+![](https://img.shields.io/badge/stars%20⭐-12-yellow)
 
 |Day|Language|Leaderboard (Part 1 / Part 2)|
 |--|--|--|
 |1|TypeScript|558 / 897|
 |2|TypeScript|3058 / 2617|
 |3|TypeScript|6107 / 2643|
 |4|TypeScript|2103 / 1654|
-|5|TypeScript|4252 / 4287|
+|5|TypeScript|4252 / 4287|
+|6|TypeScript|527 / 726|

README.md

@@ -1,6 +1,6 @@
 # My Advent of Code Solutions
 
-![](https://img.shields.io/badge/Total%20stars%20⭐-421-yellow)
+![](https://img.shields.io/badge/Total%20stars%20⭐-423-yellow)
 
 ## What language do I use?
 Whatever I feel like today. But it will most likely either be Java, Python, C++, Typescript or Haskell
@@ -9,7 +9,7 @@ Whatever I feel like today. But it will most likely either be Java, Python, C++,
 
 <h3>2024</h3>
 
-![](https://img.shields.io/badge/stars%20⭐-10-yellow)
+![](https://img.shields.io/badge/stars%20⭐-12-yellow)
 
 |Day|Language|
 |--|--|
@@ -18,6 +18,7 @@ Whatever I feel like today. But it will most likely either be Java, Python, C++,
 |3|TypeScript|
 |4|TypeScript|
 |5|TypeScript|
+|6|TypeScript|
 
 
 <h3><a href="2023/README.md">2023</a></h3>