aoc2020/20/1.py
Juan José Gutiérrez de Quevedo Pérez de03aad9d6 commit day 19, 20 and 21
19 and 20 are incomplete and nothing is optimized
2020-12-21 22:48:27 +01:00

38 lines
930 B
Python

with open("input") as f:
content = [x.strip() for x in f]
def simplify_tile(tile):
result = []
result.append(tile[0])
result.append("".join([x[0] for x in tile]))
result.append("".join([x[-1] for x in tile]))
result.append(tile[-1])
return result
tiles = {}
new_tile = []
for c in content:
if not c:
tiles[tile_id] = simplify_tile(new_tile)
new_tile = []
elif c.startswith("Tile"):
tile_id = int(c[5:-1])
else:
new_tile.append(c)
def find_match(tiles, tile_id, border):
for t_id, tile in tiles.items():
if t_id != tile_id:
for b in tile:
if b == border or b == "".join(list(reversed(border))):
return True
return False
result = 1
for tile_id, tile in tiles.items():
if list(map(lambda x: find_match(tiles, tile_id, x), tile)).count(True) == 2:
result *= tile_id
print(result)