[FIX] Fixed bug in day1 part 1

functions/src/day1.ts

@@ -2,9 +2,10 @@
 class Day1 {
   static part1(input: string[]): number {
 
+    const values = input.map(s => parseInt(s));
     let res = 0;
-    for (let i = 1; i < input.length; i++) {
-      if (input[i] > input[i-1]) res++;
+    for (let i = 1; i < values.length; i++) {
+      if (values[i] > values[i-1]) res++;
     }
     return res;
   }