【例】树的直径 - Problem Statistics - lizikid

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	DH-LZR	154ms	8.4 MiB	C++14(O2)	687 Bytes	2025-8-8 10:10:21
AC	jike1994	217ms	8.4 MiB	C++14(O2)	921 Bytes	2024-12-24 15:05:54

ID: 2137
Time: 1000ms
Memory: 256MiB
Difficulty: 5
Tags: (None)
# Submissions: 2
Accepted: 2
Uploaded By: jike1994