Day 01

2026-07-14 11:43:45 +00:00 · 2018-12-01 12:34:05 +00:00
parent a7c732314b
commit 8d7d4f20ac
8 changed files with 1151 additions and 0 deletions
@@ -0,0 +1,33 @@
+// AdventOfCode2018-01
+var fs = require('fs');
+var frequency = 0; 
+var frequencyHistory = [];
+var loopCount = 0;
+
+var textFile = fs.readFileSync('./input.txt').toString();
+var textArray = textFile.split(/\r?\n/);
+
+var foundDuplicate = false;
+while (!foundDuplicate) {
+    for (var line of textArray) {
+        if (line.substr(0,1) == '+') {
+            frequency += parseInt(line.substr(1));
+        }
+        else {
+            frequency -= parseInt(line.substr(1));
+        }
+        //console.log(frequency.toString());
+        if (frequencyHistory.includes(frequency)) {
+            console.log('The first repeated frequency is ' + frequency);
+            firstRepeatedFrequency = frequency;
+            foundDuplicate = true;
+            break;
+        }
+        else {
+            frequencyHistory.push(frequency);
+        }
+    };
+    loopCount += 1;
+}
+
+console.log(loopCount);