description Problem history Submissions question_mark Qna how_to_vote Vote #9149 upload 412 done 217 how_to_reg 195 파일입출력 - 연습문제4 timer 1s memory 32MB upload Attempts 412 times Solved 217 times Solvers 195 people Acceptance Rate 52.7% monitoring Average Runtime 4.7ms Average Memory 842.3KB Average Code Length 652.2B No. Submitter Result Time Memory Length Language Submitted