

'''simple docstring'''

from .balanced_parentheses import balanced_parentheses
from .stack import Stack

def     __magic_name__       ( A							)			->		int:
	return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(A					,   -1							)

def     __magic_name__       ( A							)			->		str:
	if not balanced_parentheses(A							):
		raise ValueError('Mismatched parentheses'							)
	snake_case							 =				Stack()
	snake_case							 =				[]
	for char in expression_str:
		if char.isalpha() or char.isdigit():
			postfix.append(A							)
		elif char == "(":
			stack.push(A							)
		elif char == ")":
			while not stack.is_empty() and stack.peek() != "(":
				postfix.append(stack.pop()							)
			stack.pop()
		else:
			while not stack.is_empty() and precedence(A							) <= precedence(stack.peek()							):
				postfix.append(stack.pop()							)
			stack.push(A							)
	while not stack.is_empty():
		postfix.append(stack.pop()							)
	return " ".join(A							)


if __name__ == "__main__":
						from doctest import testmod

						testmod()
						lowerCAmelCase_						   =			"a+b*(c^d-e)^(f+g*h)-i"

						print("Infix to Postfix Notation demonstration:\n")
						print("Infix notation: " + expression)
						print("Postfix notation: " + infix_to_postfix(expression))








'''simple docstring'''

lowerCAmelCase_						   =			{0: [1, 2], 1: [0, 3], 2: [0], 3: [1], 4: [5, 6], 5: [4, 6], 6: [4, 5]}

lowerCAmelCase_						   =			{0: [1, 2, 3], 1: [0, 3], 2: [0], 3: [0, 1], 4: [], 5: []}

def     __magic_name__       ( A					,   A					,   A							)			->		list:
	snake_case							 =				True
	snake_case							 =				[]

	for neighbour in graph[vert]:
		if not visited[neighbour]:
			connected_verts += dfs(A					,   A					,   A							)

	return [vert, *connected_verts]

def     __magic_name__       ( A							)			->		list:
	snake_case							 =				len(A							)
	snake_case							 =				graph_size * [False]
	snake_case							 =				[]

	for i in range(A							):
		if not visited[i]:
			snake_case							 =				dfs(A					,   A					,   A							)
			components_list.append(A							)

	return components_list


if __name__ == "__main__":
						import doctest

						doctest.testmod()





