From e688c2b674fc7ad6a964a48df379e5abd01843a7 Mon Sep 17 00:00:00 2001
From: Tom van der Lee <tom@vanderlee.io>
Date: Mon, 4 Dec 2023 10:40:34 +0100
Subject: Day4

---
 day3/__init__.py | 42 +++++++++++++++++++++++++-----------------
 1 file changed, 25 insertions(+), 17 deletions(-)

(limited to 'day3')

diff --git a/day3/__init__.py b/day3/__init__.py
index ebe243e..aca90da 100644
--- a/day3/__init__.py
+++ b/day3/__init__.py
@@ -8,7 +8,9 @@ from aoc.datastructures import Coordinate
 
 
 class Assignment(BaseAssignment, ABC):
-    def symbol_overlap(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> set[Coordinate]:
+    def symbol_overlap(
+        self, number_coordinates: list[Coordinate], symbols: set[Coordinate]
+    ) -> set[Coordinate]:
         neighbours = {
             neighbour
             for coordinate in number_coordinates
@@ -17,7 +19,9 @@ class Assignment(BaseAssignment, ABC):
 
         return neighbours & symbols
 
-    def read_input(self, example=False) -> tuple[list[str], list[tuple[list[Coordinate], int]], set[Coordinate]]:
+    def read_input(
+        self, example=False
+    ) -> tuple[list[str], list[tuple[list[Coordinate], int]], set[Coordinate]]:
         schematic = list(super().read_input(example))
         numbers: list[tuple[list[Coordinate], int]] = list()
         symbols: set[Coordinate] = set()
@@ -28,7 +32,7 @@ class Assignment(BaseAssignment, ABC):
             for x, item in enumerate(row):
                 if item.isdigit():
                     if number is None:
-                        number = [[], '']
+                        number = [[], ""]
 
                     number[0].append(Coordinate(x, y))
                     number[1] += item
@@ -38,7 +42,7 @@ class Assignment(BaseAssignment, ABC):
                     numbers.append((number[0], int(number[1])))
                     number = None
 
-                if item != '.':
+                if item != ".":
                     symbols.add(Coordinate(x, y))
 
             if number is not None:
@@ -50,10 +54,14 @@ class Assignment(BaseAssignment, ABC):
 class AssignmentOne(Assignment):
     example_result = 4361
 
-    def is_part_number(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> bool:
+    def is_part_number(
+        self, number_coordinates: list[Coordinate], symbols: set[Coordinate]
+    ) -> bool:
         return len(self.symbol_overlap(number_coordinates, symbols)) > 0
 
-    def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
+    def run(
+        self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]
+    ) -> int:
         _, numbers, symbols = input
 
         part_numbers = []
@@ -68,14 +76,16 @@ class AssignmentOne(Assignment):
 class AssignmentTwo(Assignment):
     example_result = 467835
 
-    def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
+    def run(
+        self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]
+    ) -> int:
         schematic, numbers, symbols = input
 
         possible_gears = {}
 
         for coordinates, number in numbers:
             for symbol in self.symbol_overlap(coordinates, symbols):
-                if schematic[symbol.y][symbol.x] != '*':
+                if schematic[symbol.y][symbol.x] != "*":
                     continue
 
                 if symbol not in possible_gears:
@@ -83,12 +93,10 @@ class AssignmentTwo(Assignment):
 
                 possible_gears[symbol].append(number)
 
-        return sum([
-            reduce(
-                lambda total, number: total * number,
-                numbers,
-                1
-            )
-            for symbol, numbers in possible_gears.items()
-            if len(numbers) > 1
-        ])
+        return sum(
+            [
+                reduce(lambda total, number: total * number, numbers, 1)
+                for symbol, numbers in possible_gears.items()
+                if len(numbers) > 1
+            ]
+        )
-- 
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