10.1 and 10.2

2022/10/index.js

@@ -0,0 +1,23 @@
+
+const fs = require('fs/promises');
+
+const sum = (arr) => arr.reduce((total, num) => total+num, 0);
+
+(async () => {
+  const input = await fs.readFile("./input.txt", 'utf8');
+
+  const simplified = input.replace(/noop/g, '0').replace(/addx (.*)/g, '0\n$1').split("\n").map(s => parseFloat(s));
+
+  simplified.unshift(1);
+
+  const targets = [20, 60, 100, 140, 180, 220];
+
+  const cycles = targets.map(t => simplified.slice(0, t));
+
+  console.log(cycles);
+
+  const total = sum(cycles.map(c => sum(c) * c.length));
+
+  console.log(total);
+
+})();

2022/10/index2.js

@@ -0,0 +1,22 @@
+
+const fs = require('fs/promises');
+
+(async () => {
+  const input = await fs.readFile("./input.txt", 'utf8');
+
+  const simplified = input.replace(/noop/g, '0').replace(/addx (.*)/g, '0\n$1').split("\n").map(s => parseFloat(s));
+
+  const cycleValues = simplified.reduce((vals, change, i) => {
+    vals.push(vals[i] + change);
+    return vals;
+  }, [1]);
+
+  console.log(cycleValues);
+  while(cycleValues.length) {
+    const row = cycleValues.splice(0, 40);
+    console.log(row.map((pos, i) =>
+      pos >= i - 1 && pos <= i + 1 ? "X" : "."
+    ).join(""))
+  }
+
+})();

2022/10/input.txt

@@ -0,0 +1,144 @@
+noop
+addx 5
+noop
+addx 3
+addx -2
+addx 4
+noop
+noop
+noop
+noop
+noop
+addx 7
+addx 3
+noop
+noop
+noop
+noop
+addx 5
+noop
+noop
+addx 5
+addx -10
+addx 2
+addx 14
+noop
+addx -38
+noop
+noop
+addx 5
+addx 2
+addx 2
+addx 3
+noop
+addx 20
+addx -19
+addx 28
+addx -21
+addx 2
+addx 3
+noop
+addx 2
+addx -4
+addx 5
+addx 2
+addx -4
+addx 11
+addx -27
+addx 28
+addx -38
+addx 5
+addx 2
+addx -1
+noop
+addx 6
+addx 3
+addx -2
+noop
+noop
+addx 7
+addx 2
+noop
+noop
+noop
+addx 5
+addx 3
+noop
+addx 2
+addx -11
+addx 6
+addx 8
+noop
+addx 3
+addx -37
+addx 1
+addx 5
+addx 2
+addx 3
+noop
+noop
+noop
+noop
+noop
+addx -5
+addx 13
+addx 2
+addx -8
+addx 9
+addx 4
+noop
+addx 5
+addx -2
+addx -14
+addx 21
+addx 1
+noop
+noop
+addx -38
+addx 2
+addx 5
+addx 2
+addx 3
+addx -2
+noop
+addx 11
+addx -6
+addx 5
+addx 2
+addx 3
+noop
+addx 2
+addx -10
+addx 15
+noop
+addx -24
+addx 17
+addx 10
+noop
+addx 3
+addx -38
+addx 5
+addx 2
+addx 3
+addx -2
+addx 2
+addx 7
+addx 1
+addx -1
+noop
+addx 5
+noop
+noop
+noop
+noop
+addx 3
+noop
+addx -21
+addx 28
+addx 1
+noop
+addx 2
+noop
+addx 3
+noop
+noop