First clear solution for Brackets by Kamyfator - python coding challenges

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First solution in Clear category for Brackets by Kamyfator

def checkio(expr):
    stack = []
    for c in expr:
        if c in set(["{", "[", "("]):
            stack.append(c)
            
        if c == "}":
            if len(stack) <= 0 or stack[-1] != "{":
                return False
            stack.pop()
            
        if c == "]":
            if len(stack) <= 0 or stack[-1] != "[":
                return False
            stack.pop()
            
        if c == ")":
            if len(stack) <= 0 or stack[-1] != "(":
                return False
            stack.pop()
    
    if len(stack) > 0:
        return False
    return True

Oct. 24, 2016

Strings Theory

0 %

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