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문제
풀이 후기
트리가 자식 개수에 제한이 있는지 검색을 해봐도 헷갈려서 좀 찾아보고 풀었다.
트리는 자식 개수에 제한은 없다.
처음 시도한 방법이 틀려서 질문 검색란에서 힌트를 얻어서 풀었다.
고려하지 못한 케이스가 있었다.
다른 사람의 풀이와 비교
출처