def is_balanced_parentheses(string: str):
stack = Stack()
for char in string:
if char == "(":
stack.push("(")
elif char == ")":
if stack.isempty():
return False
else:
stack.pop()
if stack.isempty():
return True
else:
return False
def is_balanced_symbols(string: str):
stack = Stack()
for char in string:
if char in "([{":
stack.push(char)
elif char in "}])":
if stack.isempty():
return False
elif match(stack.peek(), char):
stack.pop()
else:
return False
if stack.isempty():
return True
else:
return False