description Problem history Submissions question_mark Qna how_to_vote Vote #4561 upload 54 done 27 how_to_reg 27 타일 timer 1s memory 128MB upload Attempts 54 times Solved 27 times Solvers 27 people Acceptance Rate 50.0% monitoring Average Runtime 57.6ms Average Memory 1846.0KB Average Code Length 622.7B No. Submitter Result Time Memory Length Language Submitted