Add day 24 part 1

day24/input.txt

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+.##.#
+###..
+#...#
+##.#.
+.###.

day24/py/main.py

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+import enum
+import sys
+from typing import List
+
+
+class TileState(enum.Enum):
+    OCCUPIED = '#'
+    EMPTY = '.'
+
+
+class Grid:
+    def __init__(self, grid: List[List[TileState]]):
+        self.grid = grid
+
+    def run_generation(self):
+        res = self.copy()
+
+        for row, row_items in enumerate(self.grid):
+            for col in range(len(row_items)):
+                adjacent_tiles = [self.grid[row + d_row][col + d_col] for (d_row, d_col) in ((0, 1), (1, 0), (0, -1), (-1, 0))
+                                  if 0 <= row + d_row < len(self.grid) and 0 <= col + d_col < len(row_items)
+                                  ]
+                if self.grid[row][col] == TileState.EMPTY and adjacent_tiles.count(TileState.OCCUPIED) in (1, 2):
+                    res[row][col] = TileState.OCCUPIED
+                elif adjacent_tiles.count(TileState.OCCUPIED) != 1:
+                    res[row][col] = TileState.EMPTY
+
+        self.grid = res
+
+    def copy(self) -> 'Grid':
+        return Grid([row.copy() for row in self.grid])
+
+    def get_biodiversity(self):
+        score = 0
+        for row, row_items in enumerate(self.grid):
+            for col in range(len(row_items)):
+                if grid[row][col] == TileState.OCCUPIED:
+                    score += 2 ** (row * len(self.grid[row]) + col)
+
+        return score
+
+    def __getitem__(self, index: int) -> List[TileState]:
+        return self.grid[index]
+
+    def __str__(self) -> str:
+        return '\n'.join(''.join(item.value for item in row) for row in self.grid)
+
+    def __len__(self) -> int:
+        return len(self.grid)
+
+    def __eq__(self, other: 'Grid') -> bool:
+        if not isinstance(other, Grid):
+            return False
+
+        return all(self.grid[row] == other[row] for row in range(len(self.grid)))
+
+
+def part1(grid: Grid) -> int:
+    all_grids = []
+    while len(all_grids) == 0 or all_grids[-1] not in all_grids[:-1]:
+        grid.run_generation()
+        all_grids.append(grid.copy())
+
+    return all_grids[-1].get_biodiversity()
+
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print("Usage: ./main.py in_file")
+        sys.exit(1)
+
+    with open(sys.argv[1]) as f:
+        grid = Grid([[TileState(char) for char in line.rstrip('\n')] for line in f])
+
+    print(part1(grid))

day24/sample1.txt

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+....#
+#..#.
+#..##
+..#..
+#....