【例】树的中心

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	DH-LZR	85ms	8.2 MiB	C++14(O2)	1.1 KiB	2025-8-8 11:59:54
AC	leixin	88ms	8.3 MiB	C++14(O2)	1.1 KiB	2025-8-15 14:17:22
AC	吴泽枢	126ms	8.2 MiB	C++14(O2)	1.1 KiB	2024-8-26 14:52:40
AC	jike1994	186ms	8.3 MiB	C++14(O2)	1.7 KiB	2024-8-24 8:47:50