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Solve day 14 part 2 not opti

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Gabriel Augendre 2022-12-16 23:34:29 +01:00
parent d5c4b069ac
commit 7e66706a4a
1 changed files with 62 additions and 18 deletions
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80
2022/day14_sand.py
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@ -13,7 +13,7 @@ def main(filename: str, expected_part_1: int = None, expected_part_2: int = None
if expected_part_1:
assert expected_part_1 == solution_part_1
solution_part_2 = solve_part_2(data)
solution_part_2 = solve_part_2(data, deepest_wall)
print(f"2. Found {solution_part_2}")
if expected_part_2:
assert expected_part_2 == solution_part_2
@ -55,30 +55,74 @@ def parse_data(data: list[str]) -> Walls:
def solve_part_1(walls: Walls, deepest_wall: int) -> int:
sand_source = (500, 0)
sand: Walls = set()
while True:
sand_x, sand_y = sand_source
while sand_y < deepest_wall:
if (sand_x, sand_y + 1) not in walls | sand:
sand_y += 1
elif (sand_x - 1, sand_y + 1) not in walls | sand:
sand_x -= 1
sand_y += 1
elif (sand_x + 1, sand_y + 1) not in walls | sand:
sand_x += 1
sand_y += 1
else:
sand.add((sand_x, sand_y))
break
sand_x, sand_y = compute_final_position(walls, sand, deepest_wall)
if sand_y >= deepest_wall:
print_grid(493, 503, 10, walls, sand)
return len(sand)
sand.add((sand_x, sand_y))
def solve_part_2(walls: Walls) -> int:
return 0
def compute_final_position(
walls: Walls, sand: Walls, deepest_wall: int, floor_level: int | None = None
) -> Point:
sand_x, sand_y = 500, 0
while sand_y < deepest_wall:
floor: Walls = set()
if floor_level:
floor = {
(sand_x - 1, floor_level),
(sand_x, floor_level),
(sand_x + 1, floor_level),
}
if (sand_x, sand_y + 1) not in walls | sand | floor:
sand_y += 1
elif (sand_x - 1, sand_y + 1) not in walls | sand | floor:
sand_x -= 1
sand_y += 1
elif (sand_x + 1, sand_y + 1) not in walls | sand | floor:
sand_x += 1
sand_y += 1
else:
return sand_x, sand_y
return sand_x, sand_y
def print_grid(
min_x: int,
max_x: int,
max_y: int,
walls: Walls,
sand: Walls,
floor_level: int | None = None,
) -> None:
for y in range(0, max_y + 1):
for x in range(min_x, max_x + 1):
if (x, y) == (500, 0):
print("+", end="")
elif y == floor_level:
print("#", end="")
elif (x, y) in walls:
print("#", end="")
elif (x, y) in sand:
print("o", end="")
else:
print(".", end="")
print()
def solve_part_2(walls: Walls, deepest_wall: int) -> int:
sand: Walls = set()
sand_x, sand_y = 0, 0
while (sand_x, sand_y) != (500, 0):
sand_x, sand_y = compute_final_position(
walls, sand, deepest_wall + 2, deepest_wall + 2
)
sand.add((sand_x, sand_y))
return len(sand)
if __name__ == "__main__":
main("inputs/day14-test1", expected_part_1=24)
main("inputs/day14-test1", expected_part_1=24, expected_part_2=93)
main("inputs/day14", expected_part_1=843)