description Problem history Submissions question_mark Qna how_to_vote Vote #9384 upload 773 done 545 how_to_reg 476 code Language restricted 문자열 - 연습문제 4 timer 1s memory 32MB upload Attempts 773 times Solved 545 times Solvers 476 people Acceptance Rate 70.5% monitoring Average Runtime 67.7ms Average Memory 8853.7KB Average Code Length 71.2B No. Submitter Result Time Memory Length Language Submitted