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PR Summary
같은 숫자는 싫어
중복 안되게 조건 넣어서 answer 배열에 append 해줬습니다.
올바른 괄호
문제 카테고리가 스택/큐라서 거기에 충실했어요(사실 안써도 풀 수 있었는데)
저는 Stack을 사용해서 담고, 비교해서 pop했습니다
마지막에 Stack이 비어있으면 True, 아니면 False로 return 했어요
폰켓몬
return에 삼항연산자 사용했습니다
ISSUE NUMBER