description Problem history Submissions question_mark Qna how_to_vote Vote #4947 upload 60 done 30 how_to_reg 29 트리의 지름 timer 1s memory 256MB upload Attempts 60 times Solved 30 times Solvers 29 people Acceptance Rate 50.0% monitoring Average Runtime 373.6ms Average Memory 9662.0KB Average Code Length 872.1B No. Submitter Result Time Memory Length Language Submitted