description Problem history Submissions question_mark Qna how_to_vote Vote #9147 upload 800 done 239 how_to_reg 221 파일입출력 - 연습문제2 timer 1s memory 32MB upload Attempts 800 times Solved 239 times Solvers 221 people Acceptance Rate 29.9% monitoring Average Runtime 3.1ms Average Memory 562.7KB Average Code Length 378.4B No. Submitter Result Time Memory Length Language Submitted