description Problem history Submissions question_mark Qna how_to_vote Vote #9149 upload 418 done 221 how_to_reg 199 파일입출력 - 연습문제4 timer 1s memory 32MB upload Attempts 418 times Solved 221 times Solvers 199 people Acceptance Rate 52.9% monitoring Average Runtime 4.7ms Average Memory 836.4KB Average Code Length 654.3B No. Submitter Result Time Memory Length Language Submitted