message: update the-maze.py
  a bit more pythonic and remove unrelated value (distance for
  the-maze-ii)
diff: @@ -12,29 +12,26 @@ class Solution(object):
  :type destination: List[int]
  :rtype: bool
  """
  - start, destination = tuple(start), tuple(destination)
  -
  def neighbors(maze, node):
  - for dir in [(-1, 0), (0, 1), (0, -1), (1, 0)]:
  - cur_node, dist = list(node), 0
  - while 0 <= cur_node[0]+dir[0] < len(maze) and \
  - 0 <= cur_node[1]+dir[1] < len(maze[0]) and \
  - not maze[cur_node[0]+dir[0]][cur_node[1]+dir[1]]:
  - cur_node[0] += dir[0]
  - cur_node[1] += dir[1]
  - dist += 1
  - yield dist, tuple(cur_node)
  + for i, j in [(-1, 0), (0, 1), (0, -1), (1, 0)]:
  + x, y = node
  + while 0 <= x + i < len(maze) and \
  + 0 <= y + j < len(maze[0]) and \
  + not maze[x+i][y+j]:
  + x += i
  + y += j
  + yield x, y
  - queue = collections.deque([(0, start)])
  + start, destination = tuple(start), tuple(destination)
  + queue = collections.deque([start])
  visited = set()
  while queue:
  - dist, node = queue.popleft()
  + node = queue.popleft()
  if node in visited: continue
  if node == destination:
  return True
  visited.add(node)
  - for neighbor_dist, neighbor in neighbors(maze, node):
  - queue.append((dist+neighbor_dist, neighbor))
  + for neighbor in neighbors(maze, node):
  + queue.append(neighbor)
  return False
  -
  