2015-10-25 20:15:48 -07:00

22 lines
423 B
Python

#!/usr/bin/env python
__author__ = "bt3"
def balance_par_str_with_stack(str1):
i, stack = 0, []
while i < len(str1):
symbol = str1[i]
if symbol == "(":
stack.append(symbol)
elif symbol == ")":
stack.pop()
i += 1
return not stack
if __name__ == '__main__':
print(balance_par_str_with_stack('((()))'))
print(balance_par_str_with_stack('(()'))