description Problem history Submissions question_mark Qna how_to_vote Vote #4351 upload 136 done 28 how_to_reg 20 구슬 timer 1s memory 16MB upload Attempts 136 times Solved 28 times Solvers 20 people Acceptance Rate 20.6% monitoring Average Runtime 436.9ms Average Memory 7926.7KB Average Code Length 1359.9B No. Submitter Result Time Memory Length Language Submitted