description Problem history Submissions question_mark Qna how_to_vote Vote #2487 upload 7 done 4 how_to_reg 3 스위치 timer 1s memory 256MB upload Attempts 7 times Solved 4 times Solvers 3 people Acceptance Rate 57.1% monitoring Average Runtime 9000.0ms Average Memory 10000.0KB Average Code Length 0.0B No. Submitter Result Time Memory Length Language Submitted