week1 9012 괄호 정재홍 #43
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Stack 유형 문제
좋은 이름 문제와 마찬가지로
스택 유형 문제는 테트리스 게임이 연상됩니다.
이 경우 필요한 조건은
괄호가 다르고, '()' 쌍으로만 제거될 수 있다는 것입니다.
해당 조건을 if문으로 적절히 변형하였습니다.