def solution(s): arr = [] answer = 0 for i in s : arr.append(i) length = len(arr) if length % 2 == 1 : return 0 for idx in range(length) : temp = arr[:] # 얕은 복사 (슬라이싱) length = len(arr) while (True) : if length == 0 : break elif length == 1 : return 0 else : if temp[0] == "(" : if temp[1] == ")" : del temp[0] del temp[0] length -= 2 elif temp[0] == "{" : if temp[1] == "}" : del temp[0] del temp[..