description Problem history Submissions question_mark Qna how_to_vote Vote #9149 upload 396 done 209 how_to_reg 191 파일입출력 - 연습문제4 timer 1s memory 32MB upload Attempts 396 times Solved 209 times Solvers 191 people Acceptance Rate 52.8% monitoring Average Runtime 4.6ms Average Memory 860.2KB Average Code Length 661.1B No. Submitter Result Time Memory Length Language Submitted