description Problem history Submissions question_mark Qna how_to_vote Vote #4557 upload 130 done 21 how_to_reg 20 auto_awesome Special judge 빌딩 장식 계획 timer 2s memory 512MB upload Attempts 130 times Solved 21 times Solvers 20 people Acceptance Rate 16.2% monitoring Average Runtime 924.6ms Average Memory 124422.0KB Average Code Length 1745.8B No. Submitter Result Time Memory Length Language Submitted