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#!/usr/bin/env python
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import enum
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import heapq
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import sys
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from typing import Iterator, NamedTuple
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class Point(NamedTuple):
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x: int
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y: int
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class ParsedMaze(NamedTuple):
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start: Point
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end: Point
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blocks: set[Point]
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class Direction(enum.IntEnum):
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EAST = enum.auto()
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WEST = enum.auto()
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NORTH = enum.auto()
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SOUTH = enum.auto()
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def rotations(self) -> tuple["Direction", "Direction"]:
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match self:
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case Direction.EAST | Direction.WEST:
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return (Direction.NORTH, Direction.SOUTH)
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case Direction.NORTH | Direction.SOUTH:
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return (Direction.EAST, Direction.WEST)
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def step(self, p: Point) -> Point:
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dx: int
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dy: int
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match self:
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case Direction.EAST:
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dx, dy = 0, 1
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case Direction.WEST:
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dx, dy = 0, -1
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case Direction.NORTH:
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dx, dy = -1, 0
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case Direction.SOUTH:
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dx, dy = 1, 0
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return Point(p.x + dx, p.y + dy)
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Node = tuple[Point, Direction]
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def solve(input: str) -> int:
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def parse(input: list[str]) -> ParsedMaze:
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start: Point | None = None
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end: Point | None = None
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blocks: set[Point] = set()
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for x, line in enumerate(input):
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for y, c in enumerate(line):
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if c == ".":
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continue
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p = Point(x, y)
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if c == "S":
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start = p
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elif c == "E":
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end = p
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elif c == "#":
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blocks.add(p)
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else:
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assert False # Sanity check
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assert start is not None # Sanity check
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assert end is not None # Sanity check
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return ParsedMaze(start, end, blocks)
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def djikstra(start: Point, end: Point, blocks: set[Point]) -> int:
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def next_moves(
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pos: Point,
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dir: Direction,
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) -> Iterator[tuple[int, Point, Direction]]:
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transitions = [(1, dir.step(pos), dir)]
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for new_dir in dir.rotations():
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transitions.append((1000, pos, new_dir))
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for cost, pos, dir in transitions:
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if pos in blocks:
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continue
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yield cost, pos, dir
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# Priority queue of (distance, point, direction)
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queue = [(0, start, Direction.EAST)]
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seen: set[Node] = set()
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while len(queue) > 0:
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cost, p, dir = heapq.heappop(queue)
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if p == end:
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return cost
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# We must have seen (p, dir) with a smaller distance before
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if (p, dir) in seen:
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continue
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# First time encountering (p, dir), must be the smallest distance to it
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seen.add((p, dir))
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# Add all neighbours to be visited
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for n_cost, n, n_dir in next_moves(p, dir):
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heapq.heappush(queue, (cost + n_cost, n, n_dir))
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assert False # Sanity check
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start, end, blocks = parse(input.splitlines())
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return djikstra(start, end, blocks)
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def main() -> None:
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input = sys.stdin.read()
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print(solve(input))
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if __name__ == "__main__":
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main()
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#############################################################################################################################################
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#.......#...#.....#.......#.........#.#.............#...........#.......#...............#.........#...........#...#.......#.......#.......#E#
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#.#####.#.###.#.#.#.#.#.#.#.#.#####.#.#.###.###.###.###.#####.#.###.#.#.#.#####.#######.#.#######.#####.#####.#.#.#.###.#.#.###.#.#.#.###.#.#
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#.....#.#.....#.#.#.#.#...#.#.....#...#.#...#...#.#...#.#.....#...#.#.#.....#...#...#...#...#...#.#.....#...#.#.#...#.....#.#...#.#.#.#.....#
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#.###.#.#.#####.###.#.#.###.#####.#.###.#.#.#.###.###.###.#######.#.#.#######.###.###.#####.#.#.#.#.#####.#.#.#.#####.#######.#.#.###.#####.#
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#.#.................#.#.#...#...#.#.#...#.#.#.#.....#.....#...#...#...#.......#.......#.....#.#.#.#.......#.#.#...#...........#.......#...#.#
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#.#.#.#.#####.#######.#.#.###.###.#.#.###.#.#.#.#.#.#######.###.#######.#########.#####.#####.#.#.#######.#.#.###.#.###########.#####.#.#.###
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#...#.#...#.#.#...#...#.#.#...#...#.#...#.#.#.#.#...........#...#.......#...................#.#.#.......#.#.#.....#.#.........#.......#.#...#
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###.#.###.#.#.#.###.#.#.#.###.#.#######.#.#.#.###.###.###.#.#.#####.#.###.#.###.#.#########.#.#######.#.###.###.#####.#######.#.#####.#.###.#
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#...#...#.#...#.#...#...#.#...#...#...#.#.#.#...#...#.#...#...#.....#.....#.....#.......#...#.#.......................#.....#.......#...#.#.#
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#.#.###.#.#.###.#.###.#.#.#.#####.#.#.#.#.#.###.#.#.###.#######.#####.#####.###.#######.#.###.#.#.###.#.#.#######.#######.#.#######.#.###.#.#
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#.#.....#.#...#.#.........#.....#...#.#.#.........#...#.....#.#.......#...#...#...#.....#.#.#...#...#...#.......#...#.....#.#.............#.#
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#.#######.###.#.#####.#.#.###.#.#####.#.#.#######.###.#####.#.#.#####.#.#.###.#.#.#.#####.#.#.#####.#.###.#####.###.#.#.###.#.#.#.###.#.#.#.#
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#.....#...#.........#...#.....#.#...#...#.#.....#.#.#.....#.#.....#...#.#.....#.#.#.#.....#.#...#...#.#.......#...#.#.#.#.....#.#...#.#...#.#
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#####.#.###.#########.#.#.###.###.#.#.###.###.#.#.#.#####.#.#####.#.#.#.#######.###.#.#.###.###.#.###.#########.###.#.#.#######.###.#.###.#.#
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#.....#.#.......#.....#.....#.#...#.#...#...#.#...#.......#.........#.#.#...#.......#.#...#.....#...#.#.......#...#.#.#.#.......#.#.#.......#
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|
||||||
#.#.###.#.#.###.#.#.#.#######.#.#.#####.#.#.#.#######.#.#.###.###.#####.#########.#####.#.###.#.#####.#.#####.#.###.#####.###.#.#######.###.#
|
|
||||||
#.#.#.....#.#.....#.#.#.........#.#.....#...#.#.....#.#.#...#.....#...#...#...#.#.....#.....#.#.#...#...#...#.#...#.......#...#...#...#.#...#
|
|
||||||
#.#.#.#######.#####.#.#.#.#######.#.###.#####.#.#####.#.###.###.###.#.###.#.#.#.#####.#####.#.#.###.#.#.###.#.###.###.###.#.#####.#.#.#.#.###
|
|
||||||
#.......#...#...#.#.#.#.#.........#...#.........#.....#...#...#.#...#...#...#.#.....#...#.#.#.#.....#.......#...#...#.#...#.#.....#.#...#...#
|
|
||||||
#.#.#####.#.###.#.#.###.###.#.#####.#.#########.#.#.###.#####.#.#.###.#.#####.#.###.###.#.#.#.#####.#####.###.###.#.###.#.#.#.#####.###.#.#.#
|
|
||||||
#.#.#.....#...#...#.#.......#.#.....#.#.#.......#.#...#.....#...#...#.#...#...#...#.#.#.#.#.#.....#.#.......#.#...#.#...#.#.#.#.......#...#.#
|
|
||||||
#.###.#######.###.#.#.#####.###.#.###.#.#.#.#.###.#.#.#####.#######.#.###.#.#.###.#.#.#.#.#.#####.#.#.#####.#.#.#.#.#.#.###.#.#.#####.#.###.#
|
|
||||||
#.....#.....#.....#.....#...#...#.#...#...#.#.#...#.#.....#...#.#...#...#.#.#.....#...#.#...#...#.#.#.#.....#...#.#...#.#...#.#.....#...#...#
|
|
||||||
#######.#.###############.#.#.###.#.#######.#.#.#####.###.#.#.#.#.#####.#.#.###.#######.#.###.#.#.#.###.#####.###.#####.#.###.#####.###.#.###
|
|
||||||
#.....#.#.............#...#.#...#.#...#.....#.#.....#.#.#.#.#...#.....#.#.#.....#.......#.#.#.#...#.....#...#.........#.#.#.....#.......#...#
|
|
||||||
#####.#.#.###.#######.#.#######.#.###.#.#####.#####.#.#.#.#.###.#####.#.#.#####.#.#######.#.#.#######.###.#.#####.#####.#.#.#.#.#######.###.#
|
|
||||||
#.....#...#...#...#...#.........#...#.#.......#...#...#...#...#.#.....#.#...#.#.#...#...#...#.............#.....#.........#.#.#...#...#.....#
|
|
||||||
#.###.###.#.###.#.#.#.#############.#.#.#####.#.#.#####.#####.###.#####.###.#.#.###.#.#.###.###########.#######.#########.#.#.###.#.#.#.#####
|
|
||||||
#...........#...#.#.#.....#...#...#...#.#...#...#...#...#...#...#...#...#.....#.#.#.#.....#.#.....#...#.#...#.#.......#...#.....#...#...#...#
|
|
||||||
#.#######.#.#.###.#.#####.#.#.#.#.#######.#.#.#####.#.###.#.###.#.###.#########.#.#.#.###.#.#.#####.#.#.#.#.#.#####.#.#.###.#########.#.#.#.#
|
|
||||||
#.....#...#.#...#.#.......#.#.#.#.........#.#...#...#.....#.#.#...#...#.....#...#.#...#.#.#...#.....#.#...#.#.......#.....#...#.....#.#...#.#
|
|
||||||
#####.#.#.#.#####.#######.#.#.#.###.#.#####.#####.#########.#.#.###.#.#.###.#.###.#####.#.#####.#####.#####.#######.#.###.#####.###.#.#.###.#
|
|
||||||
#...#...........#.#...#...#.#...#.#...#.........#.....#.....#.....#.#.#...#.#.#.........#.......#...#.....#.......#.#.....#.....#.#.#.....#.#
|
|
||||||
#.#.#####.#.#.#.#.#.#.#.###.#####.#.#####.#####.#####.#.#.#####.###.#####.#.#.#.#######.#.#########.#.###.#######.#.#######.#####.#.###.###.#
|
|
||||||
#.......#.#.#.#.#...#...#.#.#...#.#.....#.....#.......#.#.....#...#.....#.#...#.....#.#.#...........#.#...........#.......#.#...#.....#.....#
|
|
||||||
#.#####.#.###.#.#.#######.#.#.#.#.#####.#.###.#########.#.###.###.###.###.#########.#.#.#.#####.#####.#.###########.#.###.#.#.#.#####.#.###.#
|
|
||||||
#.#...#.#.#...#.#.......#.#...#...#...#.#.#.#...........#...#.....#.#.#...#.........#...#.#.#...#.....#...#.......#...#.#.#.#.....#.#.#.#...#
|
|
||||||
#.#.#.#.#.#.###.#.#####.#.#######.#.#.#.#.#.###############.#####.#.#.#.###.###.#####.#.#.#.#.###.###.###.###.#.#.#.###.#.#.#.###.#.#.#.###.#
|
|
||||||
#...#...#.#.#.#...#...#...#.......#.#.....#...............#.....#...#...#.#.#...#.....#.#.#.....#.#.#...#...#.#.#...#.....#.#.....#.#.......#
|
|
||||||
#.#####.#.#.#.#.###.#.###.#.#######.#.#####.#.###########.#.###.#####.###.#.#.###.#####.#.#.#####.#.###.###.###.#####.#####.###.#.#.#.###.#.#
|
|
||||||
#.#...#...#.#.#.....#...#.#.........#.......#.......#.......#.#.........#...#.#...#.....#.#...#...#.......#...#.#.....#.......#.#.#.#.#...#.#
|
|
||||||
#.#.#.###.#.#.#########.#.#####.###.#########.#.#####.#####.#.#######.###.###.#.###.#####.#.###.#.#######.###.#.#.#####.#######.#.#.#.#.#####
|
|
||||||
#.#...........#...#.#...#...#...#...#...#.....#.......#.............#.#...#...#...#.......#.#.....#.........#...#...#...........#.#...#.....#
|
|
||||||
#.#.#.#######.#.#.#.#.#.###.#.###.###.###.#############.#############.#.###.###.#.#.#########.###.#.#.#####.#######.#.###########.#.#.#.###.#
|
|
||||||
#...#.#.....#...#.#.#...#...#.#.....#.#...#...........#.#...........#.#.#.#.#.#.#...#.....#...#...#.#.....#...#...#.#.#...#...#...#...#...#.#
|
|
||||||
#.###.#.#.#######.#.###.#####.#.###.#.#.###.#####.###.###.#####.#.#.#.#.#.#.#.#.#####.###.#.#.#####.#####.#####.#.#.#.#.#.#.###.#####.#####.#
|
|
||||||
#...#.#.#.......#...#.#.#...#.#.#...#.#...#...#.......#...#.....#.#...#...#.#...#...#.#.....#.#.....#.....#...#.#...#...#...#...#...........#
|
|
||||||
#####.#.#######.#.#.#.#.#.#.#.#.#.###.###.###.###.#####.#####.###.#####.#.#.###.#.#.#.#########.#####.###.#.#.#.#######.###.#.###############
|
|
||||||
#.....#.#...#...#...#.#.#.#.....#.#.........#...#.#...#.....#.....#.....#.#...#...#.#.#.........#...#.#...#.#...#...#.....#.#.#.............#
|
|
||||||
#.###.#.#.#.#.###.###.#.#.#####.#.#########.###.#.#.#.###.#.#######.#.###.###.#####.#.#.###########.#.#####.#######.#.#.###.#.#.###########.#
|
|
||||||
#...#.#.#.#.#.....#...#.#...#...#.........#.#...#...#...#.#.......#.#.....#.#.#.....#...#.....#.....#.......#.....#...#.#...#.......#.......#
|
|
||||||
#.#.#.#.#.#########.#.#.###.#############.#.#.#########.#.#######.#.#######.#.###############.#.#.###.#######.###.###.#.#.#########.#.#.#.#.#
|
|
||||||
#.#.#.#.#...........#.#...#.#...#.......#.#.#.#.....#.#.#.......#.....#.........#...........#...#.#.........#...#...#.#...................#.#
|
|
||||||
#.#.###.#.#######.###.###.#.#.#.#.#####.#.#.#.#.###.#.#.###.#########.#.###.###.#.#.###.###.#####.#.#####.#.###.#.#.#.#########.#.#.#.#.###.#
|
|
||||||
#.#.....#.#.....#.#.....#.#.#.#...#...#.#.#.#...#...#.#.#...#.......#...#.#...#...#.....#.#.#...#.......#.#.#...#...#.#.........#.#...#.#...#
|
|
||||||
#.#######.#.###.#.###.#.#.#.#.#####.###.#.#.#.###.###.#.#.###.#####.#####.###.#####.###.#.#.#.#.#####.###.#.#.###.#####.#########.#######.#.#
|
|
||||||
#...#.....#.#...#...#...#.#...#...#.....#.#.#...#.#.....#...#.#...#.#...#.........#.#.#.....#.#...........#...#.#.......#.......#.....#...#.#
|
|
||||||
###.#.#####.#.#####.###.#.#######.#.#####.#.#####.#.#####.###.#.###.###.#.#####.###.#.#.###.#.#############.#.#.#########.#####.#####.#.###.#
|
|
||||||
#.#.#.....#.#.#...#...#.#...#.....#.#.....#.......#...#...#...#.......#.........#...#.#.#.......#.........#...#.....#.....#.#...#.....#...#.#
|
|
||||||
#.#.#####.#.#.#.#.###.#####.#.#.#.#.#.#.###########.#.#.###.#########.#######.#.#.###.#.#.#.###.#########.#######.#.#.#####.#.###.#######.#.#
|
|
||||||
#...#...#.#.#...#.#...#...#.#.#.#.#.#.#.#...#.........#.#...#.....#...#.....#...#...#...#.#...#.#...#.......#.....#...#.......#...#.......#.#
|
|
||||||
#.#.#.#.#.#######.#.###.#.#.#.#.###.#.#.#.#.#######.#.###.###.###.#.###.###.#######.#.###.#.#.#.#.#.#.#####.#.#########.#######.###.###.###.#
|
|
||||||
#.#...#.#...#...........#.........................#.....#...............#.#.........#.#...#.#.#...#.#...#.#.#...#.....#.#.......#.....#...#.#
|
|
||||||
#.#.###.###.#.###.###.###.###########.#.#.#######.#.###.###.###.#.#.#.###.###########.#####.#.###.#.#.#.#.#.###.#.#####.#.#######.#######.#.#
|
|
||||||
#...#...#...#.#.#.#...#.........#...#.#.#.....#.#.....#...#.#...#.#...#.............#.#.....#...#.#.#.#.#.......#.......#.........#.......#.#
|
|
||||||
###.#.###.###.#.#.#.#.#.#######.#.#.#.#.#####.#.#####.###.#.#.#.#.#######.#####.#.###.#.#.#.###.#.#.###.#######.#####.#####.###.#.#.#######.#
|
|
||||||
#...#.#.#.....#...#.#...#.....#.#.#...#.#.........#...#.#.#.....................#...#...#...#.#.#.#...#.....#.#.#...#.......#...#.#...#...#.#
|
|
||||||
#.#.#.#.#.#####.###.#.###.###.#.#.#######.#######.#.###.#.###.#.###.#.#.###.#.###.#.#######.#.#.#####.#.###.#.#.#.#.#######.#.#######.#.#.#.#
|
|
||||||
#.....#...#...#...#.#.....#...#.#.........#.....#.#.#.#...#.......#...#...#.#...#.#...........#.....#.#...#.#...#.#.......#.#...#...#...#.#.#
|
|
||||||
#.#.#######.#.#####.#.#.#####.#.#####.#####.###.###.#.#.###.#.###########.#.###.#.#####.###.#.#####.#.###.#.#####.#######.#.#.#.#.#.#####.#.#
|
|
||||||
#.#.....#...#.#.....#.#.#...#.#.....#.....#.#.#...#.#.#...#...#.......................#...#...#...#.#...................#.#...#.#.#.#.......#
|
|
||||||
#.###.#.#.###.#.#####.#.#.#.#######.#######.#.###.#.#.###.###.#.#######.#####.###.#.#.###.#.###.#.#.###.#.#.#.#####.###.#.#####.#.#.#.#####.#
|
|
||||||
#S....#...#.....#.....#...#.................#.......#...........#.............#.....#...#.......#.....................................#.....#
|
|
||||||
#############################################################################################################################################
|
|
|
@ -1,148 +0,0 @@
|
||||||
#!/usr/bin/env python
|
|
||||||
|
|
||||||
import enum
|
|
||||||
import heapq
|
|
||||||
import sys
|
|
||||||
from collections import defaultdict
|
|
||||||
from typing import Iterator, NamedTuple
|
|
||||||
|
|
||||||
|
|
||||||
class Point(NamedTuple):
|
|
||||||
x: int
|
|
||||||
y: int
|
|
||||||
|
|
||||||
|
|
||||||
class ParsedMaze(NamedTuple):
|
|
||||||
start: Point
|
|
||||||
end: Point
|
|
||||||
blocks: set[Point]
|
|
||||||
|
|
||||||
|
|
||||||
class Direction(enum.IntEnum):
|
|
||||||
EAST = enum.auto()
|
|
||||||
WEST = enum.auto()
|
|
||||||
NORTH = enum.auto()
|
|
||||||
SOUTH = enum.auto()
|
|
||||||
|
|
||||||
def rotations(self) -> tuple["Direction", "Direction"]:
|
|
||||||
match self:
|
|
||||||
case Direction.EAST | Direction.WEST:
|
|
||||||
return (Direction.NORTH, Direction.SOUTH)
|
|
||||||
case Direction.NORTH | Direction.SOUTH:
|
|
||||||
return (Direction.EAST, Direction.WEST)
|
|
||||||
|
|
||||||
def step(self, p: Point) -> Point:
|
|
||||||
dx: int
|
|
||||||
dy: int
|
|
||||||
|
|
||||||
match self:
|
|
||||||
case Direction.EAST:
|
|
||||||
dx, dy = 0, 1
|
|
||||||
case Direction.WEST:
|
|
||||||
dx, dy = 0, -1
|
|
||||||
case Direction.NORTH:
|
|
||||||
dx, dy = -1, 0
|
|
||||||
case Direction.SOUTH:
|
|
||||||
dx, dy = 1, 0
|
|
||||||
|
|
||||||
return Point(p.x + dx, p.y + dy)
|
|
||||||
|
|
||||||
|
|
||||||
Node = tuple[Point, Direction]
|
|
||||||
|
|
||||||
|
|
||||||
def solve(input: str) -> int:
|
|
||||||
def parse(input: list[str]) -> ParsedMaze:
|
|
||||||
start: Point | None = None
|
|
||||||
end: Point | None = None
|
|
||||||
blocks: set[Point] = set()
|
|
||||||
for x, line in enumerate(input):
|
|
||||||
for y, c in enumerate(line):
|
|
||||||
if c == ".":
|
|
||||||
continue
|
|
||||||
p = Point(x, y)
|
|
||||||
if c == "S":
|
|
||||||
start = p
|
|
||||||
elif c == "E":
|
|
||||||
end = p
|
|
||||||
elif c == "#":
|
|
||||||
blocks.add(p)
|
|
||||||
else:
|
|
||||||
assert False # Sanity check
|
|
||||||
assert start is not None # Sanity check
|
|
||||||
assert end is not None # Sanity check
|
|
||||||
return ParsedMaze(start, end, blocks)
|
|
||||||
|
|
||||||
def count_path_cells(start: Point, end: Point, blocks: set[Point]) -> int:
|
|
||||||
def next_moves(
|
|
||||||
pos: Point,
|
|
||||||
dir: Direction,
|
|
||||||
) -> Iterator[tuple[int, Point, Direction]]:
|
|
||||||
transitions = [(1, dir.step(pos), dir)]
|
|
||||||
for new_dir in dir.rotations():
|
|
||||||
transitions.append((1000, pos, new_dir))
|
|
||||||
for cost, pos, dir in transitions:
|
|
||||||
if pos in blocks:
|
|
||||||
continue
|
|
||||||
yield cost, pos, dir
|
|
||||||
|
|
||||||
def get_all_predecessors(
|
|
||||||
predecessors: dict[Node, set[Node]],
|
|
||||||
) -> set[Point]:
|
|
||||||
queue = {(end, dir) for dir in Direction}
|
|
||||||
visited: set[Node] = set()
|
|
||||||
while queue:
|
|
||||||
cur = queue.pop()
|
|
||||||
visited.add(cur)
|
|
||||||
for pred in predecessors[cur]:
|
|
||||||
if pred in visited:
|
|
||||||
continue
|
|
||||||
queue.add(pred)
|
|
||||||
return set(p for p, _ in visited)
|
|
||||||
|
|
||||||
# Priority queue of (distance, point)
|
|
||||||
queue = [(0, start, Direction.EAST)]
|
|
||||||
seen: set[Node] = set()
|
|
||||||
predecessors: dict[Node, set[Node]] = defaultdict(set)
|
|
||||||
predecessor_cost: dict[Node, int] = {}
|
|
||||||
# Use an invalid maximum cost to simplify the loop
|
|
||||||
max_cost: int = -1
|
|
||||||
|
|
||||||
while len(queue) > 0:
|
|
||||||
cost, p, dir = heapq.heappop(queue)
|
|
||||||
# Did we go past the optimal cost, if so stop the loop
|
|
||||||
if max_cost > 0 and cost > max_cost:
|
|
||||||
break
|
|
||||||
# Otherwise, record the minimum cost
|
|
||||||
if p == end:
|
|
||||||
max_cost = cost
|
|
||||||
# We must have seen (p, dir) with a smaller distance before
|
|
||||||
if (p, dir) in seen:
|
|
||||||
continue
|
|
||||||
# First time encountering (p, dir), must be the smallest distance to it
|
|
||||||
seen.add((p, dir))
|
|
||||||
# Add all neighbours to be visited
|
|
||||||
for n_cost, n, n_dir in next_moves(p, dir):
|
|
||||||
n_cost += cost
|
|
||||||
# Record predecessors
|
|
||||||
if predecessor_cost.setdefault((n, n_dir), n_cost) > n_cost:
|
|
||||||
predecessor_cost[(n, n_dir)] = n_cost
|
|
||||||
predecessors[(n, n_dir)] = {(p, dir)}
|
|
||||||
elif predecessor_cost[(n, n_dir)] == n_cost:
|
|
||||||
predecessors[(n, n_dir)].add((p, dir))
|
|
||||||
heapq.heappush(queue, (n_cost, n, n_dir))
|
|
||||||
|
|
||||||
# Run back up the tree of predecessors to count all cells
|
|
||||||
return len(get_all_predecessors(predecessors))
|
|
||||||
|
|
||||||
start, end, blocks = parse(input.splitlines())
|
|
||||||
return count_path_cells(start, end, blocks)
|
|
||||||
|
|
||||||
|
|
||||||
def main() -> None:
|
|
||||||
input = sys.stdin.read()
|
|
||||||
print(solve(input))
|
|
||||||
|
|
||||||
|
|
||||||
if __name__ == "__main__":
|
|
||||||
main()
|
|
|
@ -1,141 +0,0 @@
|
||||||
#############################################################################################################################################
|
|
||||||
#.......#...#.....#.......#.........#.#.............#...........#.......#...............#.........#...........#...#.......#.......#.......#E#
|
|
||||||
#.#####.#.###.#.#.#.#.#.#.#.#.#####.#.#.###.###.###.###.#####.#.###.#.#.#.#####.#######.#.#######.#####.#####.#.#.#.###.#.#.###.#.#.#.###.#.#
|
|
||||||
#.....#.#.....#.#.#.#.#...#.#.....#...#.#...#...#.#...#.#.....#...#.#.#.....#...#...#...#...#...#.#.....#...#.#.#...#.....#.#...#.#.#.#.....#
|
|
||||||
#.###.#.#.#####.###.#.#.###.#####.#.###.#.#.#.###.###.###.#######.#.#.#######.###.###.#####.#.#.#.#.#####.#.#.#.#####.#######.#.#.###.#####.#
|
|
||||||
#.#.................#.#.#...#...#.#.#...#.#.#.#.....#.....#...#...#...#.......#.......#.....#.#.#.#.......#.#.#...#...........#.......#...#.#
|
|
||||||
#.#.#.#.#####.#######.#.#.###.###.#.#.###.#.#.#.#.#.#######.###.#######.#########.#####.#####.#.#.#######.#.#.###.#.###########.#####.#.#.###
|
|
||||||
#...#.#...#.#.#...#...#.#.#...#...#.#...#.#.#.#.#...........#...#.......#...................#.#.#.......#.#.#.....#.#.........#.......#.#...#
|
|
||||||
###.#.###.#.#.#.###.#.#.#.###.#.#######.#.#.#.###.###.###.#.#.#####.#.###.#.###.#.#########.#.#######.#.###.###.#####.#######.#.#####.#.###.#
|
|
||||||
#...#...#.#...#.#...#...#.#...#...#...#.#.#.#...#...#.#...#...#.....#.....#.....#.......#...#.#.......................#.....#.......#...#.#.#
|
|
||||||
#.#.###.#.#.###.#.###.#.#.#.#####.#.#.#.#.#.###.#.#.###.#######.#####.#####.###.#######.#.###.#.#.###.#.#.#######.#######.#.#######.#.###.#.#
|
|
||||||
#.#.....#.#...#.#.........#.....#...#.#.#.........#...#.....#.#.......#...#...#...#.....#.#.#...#...#...#.......#...#.....#.#.............#.#
|
|
||||||
#.#######.###.#.#####.#.#.###.#.#####.#.#.#######.###.#####.#.#.#####.#.#.###.#.#.#.#####.#.#.#####.#.###.#####.###.#.#.###.#.#.#.###.#.#.#.#
|
|
||||||
#.....#...#.........#...#.....#.#...#...#.#.....#.#.#.....#.#.....#...#.#.....#.#.#.#.....#.#...#...#.#.......#...#.#.#.#.....#.#...#.#...#.#
|
|
||||||
#####.#.###.#########.#.#.###.###.#.#.###.###.#.#.#.#####.#.#####.#.#.#.#######.###.#.#.###.###.#.###.#########.###.#.#.#######.###.#.###.#.#
|
|
||||||
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#.#...#.#...#...........#.........................#.....#...............#.#.........#.#...#.#.#...#.#...#.#.#...#.....#.#.......#.....#...#.#
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#.#.###.###.#.###.###.###.###########.#.#.#######.#.###.###.###.#.#.#.###.###########.#####.#.###.#.#.#.#.#.###.#.#####.#.#######.#######.#.#
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#...#...#...#.#.#.#...#.........#...#.#.#.....#.#.....#...#.#...#.#...#.............#.#.....#...#.#.#.#.#.......#.......#.........#.......#.#
|
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||||||
###.#.###.###.#.#.#.#.#.#######.#.#.#.#.#####.#.#####.###.#.#.#.#.#######.#####.#.###.#.#.#.###.#.#.###.#######.#####.#####.###.#.#.#######.#
|
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#...#.#.#.....#...#.#...#.....#.#.#...#.#.........#...#.#.#.....................#...#...#...#.#.#.#...#.....#.#.#...#.......#...#.#...#...#.#
|
|
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#.#.#.#.#.#####.###.#.###.###.#.#.#######.#######.#.###.#.###.#.###.#.#.###.#.###.#.#######.#.#.#####.#.###.#.#.#.#.#######.#.#######.#.#.#.#
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#.....#...#...#...#.#.....#...#.#.........#.....#.#.#.#...#.......#...#...#.#...#.#...........#.....#.#...#.#...#.#.......#.#...#...#...#.#.#
|
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#.#.#######.#.#####.#.#.#####.#.#####.#####.###.###.#.#.###.#.###########.#.###.#.#####.###.#.#####.#.###.#.#####.#######.#.#.#.#.#.#####.#.#
|
|
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#.#.....#...#.#.....#.#.#...#.#.....#.....#.#.#...#.#.#...#...#.......................#...#...#...#.#...................#.#...#.#.#.#.......#
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|
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#.###.#.#.###.#.#####.#.#.#.#######.#######.#.###.#.#.###.###.#.#######.#####.###.#.#.###.#.###.#.#.###.#.#.#.#####.###.#.#####.#.#.#.#####.#
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||||||
#S....#...#.....#.....#...#.................#.......#...........#.............#.....#...#.......#.....................................#.....#
|
|
||||||
#############################################################################################################################################
|
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Loading…
Reference in a new issue