From 52def01d740d819d1f23becc27220918a1ce0824 Mon Sep 17 00:00:00 2001
From: Alix von Schirp <github@avonschirp.bootmedia.de>
Date: Tue, 11 Nov 2025 04:42:07 +0100
Subject: [PATCH] 2015/3

---
 src/2015/3/1/index.ts | 39 +++++++++++++++++++++++
 src/2015/3/2/index.ts | 72 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 src/2015/3/1/index.ts
 create mode 100644 src/2015/3/2/index.ts

diff --git a/src/2015/3/1/index.ts b/src/2015/3/1/index.ts
new file mode 100644
index 0000000..7a1bdd3
--- /dev/null
+++ b/src/2015/3/1/index.ts
@@ -0,0 +1,39 @@
+export default async function runner(inputPath: string) {
+  const input = await Bun.file(inputPath).text();
+  
+  let houses = 1;
+  
+  const map: boolean[][] = [];
+  
+  let x: number = 0;
+  let y: number = 0;
+  
+  
+  map[0] = []
+  map[0][0] = true;
+  
+  for (var char of input) {
+      switch (char) {
+        case '>':
+          x++;
+          break;
+        case '<':
+          x--;
+          break;
+        case '^':
+          y++;
+          break;
+        case 'v':
+          y--;
+          break;
+      }
+      if(!map[x]) map[x] = [];
+      if(map[x][y]) continue;
+      map[x][y] = true;
+      
+      houses++;
+    
+  }
+  
+  console.log(houses);
+}
diff --git a/src/2015/3/2/index.ts b/src/2015/3/2/index.ts
new file mode 100644
index 0000000..ebc085b
--- /dev/null
+++ b/src/2015/3/2/index.ts
@@ -0,0 +1,72 @@
+export default async function runner(inputPath: string) {
+  const input = await Bun.file(inputPath).text();
+  
+  let cnt: number = 0;
+  
+  let houses = 1;
+  
+  const map: boolean[][] = [];
+  
+  let x: number = 0;
+  let y: number = 0;
+  
+  let roboX: number = 0;
+  let roboY: number = 0;
+  
+  map[0] = []
+  map[0][0] = true;
+  for (var char of input) {
+    
+    cnt++;
+    if(cnt%2 === 1) {
+      switch (char) {
+        case '>':
+          x++;
+          break;
+        case '<':
+          x--;
+          break;
+        case '^':
+          y++;
+          break;
+        case 'v':
+          y--;
+          break;
+        default: break;
+      }
+      if(!map[x]) map[x] = [];
+      if(map[x][y]) {
+        continue;
+      }
+      map[x][y] = true;
+      
+      houses++;
+    } else {
+      switch (char) {
+        case '>':
+          roboX++;
+          break;
+        case '<':
+          roboX--;
+          break;
+        case '^':
+          roboY++;
+          break;
+        case 'v':
+          roboY--;
+          break;
+        default: break;
+      }
+      if(!map[roboX]) map[roboX] = [];
+      if(map[roboX][roboY]) {
+        continue;
+      }
+      map[roboX][roboY] = true;
+      
+      houses++;
+    }
+    
+  }
+  
+  console.log(houses);
+}