description Problem history Submissions question_mark Qna how_to_vote Vote #9659 upload 127 done 54 how_to_reg 46 트리 순회 timer 1s memory 256MB upload Attempts 127 times Solved 54 times Solvers 46 people Acceptance Rate 42.5% monitoring Average Runtime 63.5ms Average Memory 14330.8KB Average Code Length 1257.1B No. Submitter Result Time Memory Length Language Submitted