description Problem history Submissions question_mark Qna how_to_vote Vote #2991 upload 1909 done 774 how_to_reg 620 방 배정(초등) timer 1s memory 32MB upload Attempts 1909 times Solved 774 times Solvers 620 people Acceptance Rate 40.5% monitoring Average Runtime 35.5ms Average Memory 3251.7KB Average Code Length 622.2B No. Submitter Result Time Memory Length Language Submitted