





from __future__ import annotations

from collections import defaultdict
from dataclasses import dataclass
@dataclass
class SCREAMING_SNAKE_CASE_    :
						__magic_name__:      int
						__magic_name__:      TreeNode | None			   =							None
						__magic_name__:      TreeNode | None			   =							None


def 				SCREAMING_SNAKE_CASE__    (     ):
	return TreeNode(3 ,			TreeNode(9 ) ,			TreeNode(20 ,			TreeNode(15 ) ,			TreeNode(7 ) ) )


def 				SCREAMING_SNAKE_CASE__    (     __a ):

	def depth_first_search(
	    __a ,			__a ,			__a ) -> None:
		if not root:
			return

		if depth == len(__a ):
			right_view.append(root.val )

		depth_first_search(root.right ,			depth + 1 ,			__a )
		depth_first_search(root.left ,			depth + 1 ,			__a )

	snake_case_		:      list           =						[]
	if not root:
		return right_view

	depth_first_search(__a ,			0 ,			__a )
	return right_view


def 				SCREAMING_SNAKE_CASE__    (     __a ):

	def depth_first_search(
	    __a ,			__a ,			__a ) -> None:
		if not root:
			return

		if depth == len(__a ):
			left_view.append(root.val )

		depth_first_search(root.left ,			depth + 1 ,			__a )
		depth_first_search(root.right ,			depth + 1 ,			__a )

	snake_case_		:      list           =						[]
	if not root:
		return left_view

	depth_first_search(__a ,			0 ,			__a )
	return left_view


def 				SCREAMING_SNAKE_CASE__    (     __a ):

	def breadth_first_search(__a ,			__a ) -> None:
		snake_case_		:      Optional[int]           =						[(root, 0)]
		snake_case_		:      Tuple           =						defaultdict(__a )

		while queue:
			snake_case_		:      Any           =						queue.pop(0 )
			snake_case_    ,snake_case_		:      Any           =						first

			lookup[hd].append(node.val )

			if node.left:
				queue.append((node.left, hd - 1) )
			if node.right:
				queue.append((node.right, hd + 1) )

		for pair in sorted(lookup.items() ,			key=lambda __a : each[0] ):
			top_view.append(pair[1][0] )

	snake_case_		:      list           =						[]
	if not root:
		return top_view

	breadth_first_search(__a ,			__a )
	return top_view


def 				SCREAMING_SNAKE_CASE__    (     __a ):
	from collections import defaultdict

	def breadth_first_search(__a ,			__a ) -> None:
		snake_case_		:      Any           =						[(root, 0)]
		snake_case_		:      int           =						defaultdict(__a )

		while queue:
			snake_case_		:      List[str]           =						queue.pop(0 )
			snake_case_    ,snake_case_		:      Dict           =						first
			lookup[hd].append(node.val )

			if node.left:
				queue.append((node.left, hd - 1) )
			if node.right:
				queue.append((node.right, hd + 1) )

		for pair in sorted(lookup.items() ,			key=lambda __a : each[0] ):
			bottom_view.append(pair[1][-1] )

	snake_case_		:      list           =						[]
	if not root:
		return bottom_view

	breadth_first_search(__a ,			__a )
	return bottom_view


if __name__ == "__main__":
						import doctest

						doctest.testmod()








_SCREAMING_SNAKE_CASE   						=		{
    0: """underwear""",
    1: """pants""",
    2: """belt""",
    3: """suit""",
    4: """shoe""",
    5: """socks""",
    6: """shirt""",
    7: """tie""",
    8: """watch""",
}

_SCREAMING_SNAKE_CASE   						=		[[1, 4], [2, 4], [3], [], [], [4], [2, 7], [3], []]

_SCREAMING_SNAKE_CASE   						=		[0 for x in range(len(graph))]
_SCREAMING_SNAKE_CASE   						=		[]


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ):
	snake_case_		:      Any           =						1
	while stack:
		snake_case_		:      List[Any]           =						stack.pop()
		print(__a ,			clothes[current_clothing] )
		order += 1


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ,			__a ):
	snake_case_		:      int           =						1
	for v in graph[u]:
		if not visited[v]:
			depth_first_search(__a ,			__a ,			__a )

	stack.append(__a )


def 				SCREAMING_SNAKE_CASE__    (     __a ,			__a ):
	for v in range(len(__a ) ):
		if not visited[v]:
			depth_first_search(__a ,			__a ,			__a )


if __name__ == "__main__":
						topological_sort(graph, visited)
						print(stack)
						print_stack(stack, clothes)

