Solve 2023 day 6 part 2

2023/Day6/javascript/solve.js

@@ -6,7 +6,7 @@ const input = fs
   .split("\n")
   .filter((line) => line !== "");
 
-const play = (time, record) => {
+const calculateWinningStrategies = (time, record) => {
   const strategies = [];
   for (let i = 0; i < time; i++) {
     const speed = i;
@@ -20,6 +20,21 @@ const play = (time, record) => {
 };
 
 const part1 = (lines) => {
+  const play = (times, distances) => {
+    let result = 1;
+
+    for (let i = 0; i < times.length; i++) {
+      const distance = distances[i];
+      const time = times[i];
+
+      const strategies = calculateWinningStrategies(time, distance);
+
+      result *= strategies.length;
+    }
+
+    return result;
+  };
+
   const times = lines[0]
     .split(":")[1]
     .trim()
@@ -32,18 +47,34 @@ const part1 = (lines) => {
     .split(/ +/)
     .map((num) => Number.parseInt(num.trim(), 0));
 
-  let result = 1;
+  return play(times, distances);
+};
 
-  for (let i = 0; i < times.length; i++) {
-    const distance = distances[i];
-    const time = times[i];
+const part2 = (lines) => {
+  const play = (times, distances) => {
+    let strategies = [];
 
-    const strategies = play(time, distance);
+    const distance = distances[0];
+    const time = times[0];
 
-    result *= strategies.length;
-  }
+    return calculateWinningStrategies(time, distance).length;
+  };
+  const times = lines[0]
+    .split(":")[1]
+    .trim()
+    .replace(/ +/g, "")
+    .split()
+    .map((num) => Number.parseInt(num.trim(), 0));
+
+  const distances = lines[1]
+    .split(":")[1]
+    .trim()
+    .replace(/ +/g, "")
+    .split()
+    .map((num) => Number.parseInt(num.trim(), 0));
 
-  return result;
+  return play(times, distances);
 };
 
 console.log(part1(input));
+console.log(part2(input));