【例】求后序遍历

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	沈鼎皓	8ms	6.2 MiB	C++17(O2)	542 Bytes	2025-9-8 7:44:41
AC	尹攸绵	8ms	5.9 MiB	C++14(O2)	300 Bytes	2024-6-22 15:52:13
AC	程裕澍	8ms	520 KiB	C++14(O2)	286 Bytes	2025-10-19 11:19:07
AC	方一帆2	9ms	548 KiB	C++14(O2)	305 Bytes	2025-11-10 18:51:02
AC	白骏锋	10ms	6.3 MiB	C++14(O2)	303 Bytes	2025-7-31 15:40:36
AC	DH-LZR	10ms	6.3 MiB	C++14(O2)	328 Bytes	2025-8-1 11:16:44
AC	jike1994	10ms	6.2 MiB	C++14(O2)	374 Bytes	2024-6-7 13:50:19
AC	lsd	11ms	5.9 MiB	C++14(O2)	307 Bytes	2024-8-10 11:53:47
AC	lsd	25ms	6.3 MiB	C++14(O2)	307 Bytes	2025-1-22 9:43:54