description Problem history Submissions question_mark Qna how_to_vote Vote #9149 upload 416 done 220 how_to_reg 198 파일입출력 - 연습문제4 timer 1s memory 32MB upload Attempts 416 times Solved 220 times Solvers 198 people Acceptance Rate 52.9% monitoring Average Runtime 4.7ms Average Memory 838.8KB Average Code Length 653.6B No. Submitter Result Time Memory Length Language Submitted