1 files changed, 41 insertions, 0 deletions

diff --git a/day7/__init__.py b/day7/__init__.py
new file mode 100644
index 0000000..b3579b7
--- /dev/null
+++ b/day7/__init__.py
@@ -0,0 +1,41 @@
+from collections import Counter
+from copy import copy
+from typing import List
+
+from aoc import BaseAssignment
+
+class Assignment(BaseAssignment):
+    def parse_item(self, item: str) -> List[int]:
+        return [ int(i) for i in item.split(',') ]
+
+    def read_input(self, example = False) -> List[int]:
+        return next(super().read_input(example))
+
+    @staticmethod
+    def calculate_cost(start, end) -> int:
+        raise NotImplementedError()
+
+    def run(self, input: List[int]) -> int:
+        return min([
+            sum([
+                self.calculate_cost(item, position)
+                for item in input
+            ])
+            for position in range(min(input), max(input) + 1)
+        ])
+
+class AssignmentOne(Assignment):
+    example_result = 37
+
+    @staticmethod
+    def calculate_cost(start, end) -> int:
+        return abs(end - start)
+
+class AssignmentTwo(Assignment):
+    example_result = 168
+
+    @staticmethod
+    def calculate_cost(start, end) -> int:
+        base_cost = AssignmentOne.calculate_cost(start, end)
+        extra = sum(i for i in range(base_cost))
+        return base_cost + extra
\ No newline at end of file