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,/\,/\,/\,/\,/\,/\,o solution in Clear category for Brackets by vmiimu
def checkio(exp):
op,cl = ['{','(','['],['}', ')', ']']
stk = []
for c in exp:
if c in op:
stk.append(c)
elif c in cl:
if not stk or stk.pop() != op[cl.index(c)]:
return False
return True if not stk else False
Nov. 20, 2018
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