Add functional solution to part 2 day 1

day1/main.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+import functools
 
 
 def part1():
@@ -20,6 +21,25 @@ def part2():
     print(total)
 
 
+# Somewhat of a weird solution, but by combining reduce with a recursive solution, we can get the correct answer :)
+def part2_alternate():
+    input_file = open('input.txt', 'r')
+
+    def reducer(total, cost):
+        next_cost = cost//3 - 2
+        if next_cost <= 0:
+            # If the next cost is less than or equal to zero, the current cost we have is the total cost
+            return total
+
+        return total + reducer(next_cost, next_cost)
+
+    total = functools.reduce(reducer, (int(line) for line in input_file), 0)
+
+    print(total)
+    input_file.close()
+
+
 if __name__ == '__main__':
     part1()
     part2()
+    part2_alternate()