description Problem history Submissions question_mark Qna how_to_vote Vote #4740 upload 7 done 3 how_to_reg 3 카드 뒤집기 게임 timer 1s memory 256MB upload Attempts 7 times Solved 3 times Solvers 3 people Acceptance Rate 42.9% monitoring Average Runtime 83.0ms Average Memory 6796.0KB Average Code Length 769.0B No. Submitter Result Time Memory Length Language Submitted