description Problem history Submissions question_mark Qna how_to_vote Vote #5254 upload 230 done 147 how_to_reg 141 책장 만들기 timer 1s memory 4MB upload Attempts 230 times Solved 147 times Solvers 141 people Acceptance Rate 63.9% monitoring Average Runtime 26.6ms Average Memory 3721.2KB Average Code Length 419.1B No. Submitter Result Time Memory Length Language Submitted