Solve 2023 day 6 part 1

Author: garritfra

2023/Day6/javascript/solve.js

@@ -0,0 +1,49 @@
+const fs = require("node:fs");
+const path = require("node:path");
+
+const input = fs
+  .readFileSync(path.join(__dirname, "../input.txt"), "utf8")
+  .split("\n")
+  .filter((line) => line !== "");
+
+const play = (time, record) => {
+  const strategies = [];
+  for (let i = 0; i < time; i++) {
+    const speed = i;
+    const calculatedTime = (time - speed) * speed;
+    if (calculatedTime > record) {
+      strategies.push(speed);
+    }
+  }
+
+  return strategies;
+};
+
+const part1 = (lines) => {
+  const times = lines[0]
+    .split(":")[1]
+    .trim()
+    .split(/ +/)
+    .map((num) => Number.parseInt(num.trim(), 0));
+
+  const distances = lines[1]
+    .split(":")[1]
+    .trim()
+    .split(/ +/)
+    .map((num) => Number.parseInt(num.trim(), 0));
+
+  let result = 1;
+
+  for (let i = 0; i < times.length; i++) {
+    const distance = distances[i];
+    const time = times[i];
+
+    const strategies = play(time, distance);
+
+    result *= strategies.length;
+  }
+
+  return result;
+};
+
+console.log(part1(input));