【例】spfa判断负环

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	DH-LZR	107ms	6 MiB	C++14(O2)	925 Bytes	2025-8-14 9:42:07
AC	chenyanliing	112ms	6.2 MiB	C++14(O2)	886 Bytes	2024-4-14 15:08:25
AC	沈鼎皓	113ms	800 KiB	C++17(O2)	1.1 KiB	2025-12-1 7:51:10
AC	方一帆2	115ms	800 KiB	C++14(O2)	1.3 KiB	2025-11-18 18:05:44
AC	lsd	153ms	6.1 MiB	C++14(O2)	1.2 KiB	2024-8-1 10:17:14
AC	jike1994	289ms	23.7 MiB	C++14(O2)	815 Bytes	2025-10-20 7:57:30