description Problem history Submissions question_mark Qna how_to_vote Vote #2590 upload 409 done 90 how_to_reg 78 찢어진 책 timer 1s memory - MB upload Attempts 409 times Solved 90 times Solvers 78 people Acceptance Rate 22.0% monitoring Average Runtime 3679.9ms Average Memory 4851.8KB Average Code Length 532.6B No. Submitter Result Time Memory Length Language Submitted