[ABC225B] 星形树判定（Star or Not）

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	方一帆2	223ms	2.1 MiB	C++14(O2)	806 Bytes	2025-11-28 19:15:39
AC	lizi12	249ms	924 KiB	C++17(O2)	282 Bytes	2025-11-29 9:46:45
AC	jike1994	255ms	928 KiB	C++14(O2)	317 Bytes	2025-11-21 15:00:13
AC	程裕澍	390ms	5.1 MiB	C++14(O2)	260 Bytes	2025-12-14 9:35:54