description Problem history Submissions question_mark Qna how_to_vote Vote #9121 upload 1474 done 786 how_to_reg 708 문자열2 - 연습문제3 timer 1s memory - MB upload Attempts 1474 times Solved 786 times Solvers 708 people Acceptance Rate 53.3% monitoring Average Runtime 21.2ms Average Memory 3663.1KB Average Code Length 465.1B No. Submitter Result Time Memory Length Language Submitted