Update day 1 solution

Start is not needed in range function, because it is 0

day-01/day-01.py

@@ -12,7 +12,7 @@ def part_1(input):
 
 def part_2(input):
     sums = list()
-    for i in range(0, len(input) - 2):
+    for i in range(len(input) - 2):
         sums.append(int(input[i]))
         sums[i] += int(input[i + 1])
         sums[i] += int(input[i + 2])