第3题-糟糕，忘记给红黑树浇水了

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	F3QWgWDuaI	147ms	7 MiB	C++17(O2)	2.5 KiB	2026-4-15 16:22:25
AC	22XTZOr8lz	211ms	8.1 MiB	C++11	2.1 KiB	2026-4-2 11:42:07
AC	CodeFun0d512c710d	354ms	34.1 MiB	Python 3	2.2 KiB	2026-4-1 2:31:49
AC	YbtvyAsABH	672ms	36.8 MiB	Python 3	2 KiB	2026-4-8 17:26:33
AC	WHFDvB17iU	945ms	33.9 MiB	Python 3	1.6 KiB	2026-4-11 2:07:57
AC	口口口	994ms	67.2 MiB	Python 3	3.4 KiB	2026-4-10 14:25:08
AC	CodeFun857716b368	1357ms	42.3 MiB	Python 3	2.5 KiB	2026-4-18 10:50:16
AC	QgeDhTvRLP	1584ms	26.6 MiB	Python 3	1.5 KiB	2026-3-28 16:28:37
AC	TaZi	1714ms	81.2 MiB	PyPy3	1.5 KiB	2026-3-28 11:42:28
AC	jizy16	1720ms	26.6 MiB	Python 3	1.5 KiB	2026-4-7 0:41:45
AC	srEltBnJ02	1731ms	26.5 MiB	Python 3	1.5 KiB	2026-4-17 15:49:46
AC	WRJEJcU758	1785ms	81.8 MiB	PyPy3	1.3 KiB	2026-3-29 14:26:28
AC	0V9hXrO5Ll	1805ms	81.4 MiB	PyPy3	1.1 KiB	2026-3-28 22:57:32
AC	HHvBYn1C6X	2102ms	20.7 MiB	Python 2	1.2 KiB	2026-4-11 0:13:24