树上距离为k的路径的数量

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	huangyi	131ms	9.5 MiB	C++17(O2)	1.4 KiB	2025-10-22 15:39:26
AC	FVVlmz105	150ms	6.4 MiB	C++14(O2)	3.7 KiB	2025-10-22 15:12:28
AC	13988078910	166ms	8 MiB	C++14(O2)	1.4 KiB	2025-10-22 15:47:31
AC	yzxyzx	179ms	7.1 MiB	C++14(O2)	1.4 KiB	2025-10-22 16:26:19
AC	duobei	179ms	5.9 MiB	C++14(O2)	1.3 KiB	2025-10-22 16:13:29
AC	kcs007	179ms	5.8 MiB	C++14(O2)	1.5 KiB	2025-10-22 15:00:08
AC	李俊诚	227ms	7.1 MiB	C++14(O2)	1.4 KiB	2025-10-22 15:50:57
AC	zxc	232ms	26.3 MiB	C++17(O2)	1.4 KiB	2025-10-22 16:09:40
AC	姚胜蓝-tree	284ms	4.8 MiB	C++14(O2)	2.6 KiB	2025-10-22 15:44:04
AC	若白	433ms	10.2 MiB	C++17(O2)	1.5 KiB	2025-10-22 16:25:30
AC	zhaolingyun	464ms	9.8 MiB	C++17(O2)	1.4 KiB	2025-10-22 16:07:20
AC	何雨壕	484ms	16.7 MiB	C++14(O2)	1.5 KiB	2025-10-22 16:04:29
AC	string_dbr	606ms	12.4 MiB	C++14(O2)	1.5 KiB	2025-10-22 16:04:49
AC	XiaoZhao12	1084ms	10.2 MiB	C++14	1.5 KiB	2025-10-22 16:10:15
AC	周丞昊contest	1176ms	9.9 MiB	C++14	1.8 KiB	2025-10-22 16:29:46