Solution day 6

app/controllers/puzzles/6.js

@@ -4,13 +4,45 @@ import PuzzlesBaseController from './base';
 export default class Puzzles6Controller extends PuzzlesBaseController {
   // BEGIN-SNIPPET day6-solution1
   solve1(input) {
-    return 'Solution 1';
+    let [time, record] = input;
+    let possible = 1;
+    for (let i = 0; i < time.length; i++) {
+      let minH = (time[i] - Math.sqrt(time[i] * time[i] - 4 * record[i])) / 2;
+      let maxH = (time[i] + Math.sqrt(time[i] * time[i] - 4 * record[i])) / 2;
+      if (minH % 1 === 0) {
+        minH += 1;
+      } else {
+        minH = Math.ceil(minH);
+      }
+      if (maxH % 1 === 0) {
+        maxH = maxH - 1;
+      } else {
+        maxH = Math.floor(maxH);
+      }
+      possible *= maxH - minH + 1;
+    }
+    return possible;
   }
   // END-SNIPPET
 
   // BEGIN-SNIPPET day6-solution2
   solve2(input) {
-    return 'Solution 1';
+    let [time, record] = input;
+    time = parseInt(time.join(''));
+    record = parseInt(record.join(''));
+    let minH = (time - Math.sqrt(time * time - 4 * record)) / 2;
+    let maxH = (time + Math.sqrt(time * time - 4 * record)) / 2;
+    if (minH % 1 === 0) {
+      minH += 1;
+    } else {
+      minH = Math.ceil(minH);
+    }
+    if (maxH % 1 === 0) {
+      maxH = maxH - 1;
+    } else {
+      maxH = Math.floor(maxH);
+    }
+    return maxH - minH + 1;
   }
   // END-SNIPPET
 }

app/routes/puzzles/6.js

@@ -2,7 +2,9 @@ import Route from '@ember/routing/route';
 
 export default class Puzzles6Route extends Route {
   parseInput(file) {
-    return file.split('\n');
+    return file
+      .split('\n')
+      .map((line) => line.match(/\d+/g).map((n) => parseInt(n)));
   }
 
   async model() {

public/inputs/day6/full-liulangzhe.txt

@@ -0,0 +1,2 @@
+Time:        40     82     91     66
+Distance:   277   1338   1349   1063

public/inputs/day6/full-minthamie.txt

@@ -0,0 +1,2 @@
+Time:        60     94     78     82
+Distance:   475   2138   1015   1650

public/inputs/day6/intro.txt

@@ -0,0 +1,2 @@
+Time:      7  15   30
+Distance:  9  40  200