Add day part 2

day-1/main.py

@@ -10,7 +10,7 @@ def parse_input() -> tuple[list[int], list[int]]:
         line2.append(int(num2))
     return line1, line2
 
-def main() -> int:
+def part_1():
     line1, line2 = parse_input()
     line1.sort()
     line2.sort()
@@ -21,6 +21,22 @@ def main() -> int:
 
     print(result)
 
+def part_2():
+    line1, line2 = parse_input()
+
+    appears = {}
+    for line in line2:
+        appears[line] = appears.get(line, 0) + 1
+
+    result = sum(appears.get(num, 0) * num for num in line1)
+
+    print(result)
+
+def main() -> int:
+    print("Part 1: ", end="")
+    part_1()
+    print("Part 2: ", end="")
+    part_2()
     return 0
 
 if __name__ == "__main__":