2023.06

challenges/2023/06.js

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+// Part 1
+const solvePuzzle1 = (input) => {
+  const [times, distances] = input.split('\n').map((line) => {
+    return line
+      .split(':')[1]
+      .split(/\s+/)
+      .filter((num) => !!num[0])
+      .map(Number);
+  });
+
+  let winning = 1;
+
+  for (let i = 0; i < times.length; i++) {
+    const time = times[i];
+    const distanceRecord = distances[i];
+    let currentWinning = 0;
+
+    for (let m = time - 1; m >= 0; m--) {
+      if ((time - m) * m > distanceRecord) {
+        currentWinning++;
+      }
+    }
+
+    currentWinning && (winning *= currentWinning);
+  }
+
+  return winning;
+};
+
+// Part 2
+const solvePuzzle2 = (input) => {
+  const [time, distanceRecord] = input.split('\n').map((line) => {
+    return Number(line.split(':')[1].split(/\s+/).join(''));
+  });
+
+  let winning = 0;
+
+  for (let m = time - 1; m >= 0; m--) {
+    if ((time - m) * m > distanceRecord) {
+      winning++;
+    }
+  }
+
+  return winning;
+};
+
+require(__dirname + '/../../utils/test.js').test(__filename, __dirname, solvePuzzle1, '1');
+require(__dirname + '/../../utils/test.js').test(__filename, __dirname, solvePuzzle2, '2');

challenges/2023/inputs/06.txt

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+Time:        47     98     66     98
+Distance:   400   1213   1011   1540