description Problem history Submissions question_mark Qna how_to_vote Vote #1501 upload 76 done 20 how_to_reg 20 집합 구하기 timer 1s memory 64MB upload Attempts 76 times Solved 20 times Solvers 20 people Acceptance Rate 26.3% monitoring Average Runtime 4986.9ms Average Memory 6922.7KB Average Code Length 1682.7B No. Submitter Result Time Memory Length Language Submitted