description Problem history Submissions question_mark Qna how_to_vote Vote #1156 upload 3197 done 906 how_to_reg 796 책 복사하기2 timer 1s memory 64MB upload Attempts 3197 times Solved 906 times Solvers 796 people Acceptance Rate 28.3% monitoring Average Runtime 447.3ms Average Memory 6741.9KB Average Code Length 1529.8B No. Submitter Result Time Memory Length Language Submitted