含k个3的数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	尹攸雨濛	28ms	6.1 MiB	C++14(O2)	352 Bytes	2024-10-7 15:16:27
AC	程裕澍	28ms	6.1 MiB	C++14(O2)	248 Bytes	2024-10-4 13:00:56
AC	熊梓诺	28ms	6.1 MiB	C++14(O2)	322 Bytes	2024-9-21 11:38:40
AC	向籽言	29ms	6.2 MiB	C++14(O2)	423 Bytes	2025-1-15 9:22:24
AC	方一帆	30ms	6 MiB	C++14(O2)	328 Bytes	2024-9-15 13:33:31
AC	王婧涵	30ms	6.3 MiB	C++14(O2)	267 Bytes	2025-4-30 20:13:31
AC	李彦泽	30ms	6.3 MiB	C++14(O2)	409 Bytes	2025-2-27 17:54:17
AC	祝福	30ms	6.2 MiB	C++14(O2)	296 Bytes	2025-1-14 9:21:53
AC	张天源	30ms	6.2 MiB	C++14(O2)	446 Bytes	2025-2-9 11:14:41
AC	王子墨	31ms	6.3 MiB	C++14(O2)	355 Bytes	2025-5-21 18:52:42
AC	黄奕杰	32ms	6.1 MiB	C++14(O2)	281 Bytes	2024-9-7 10:42:25
AC	周鑫	34ms	6.2 MiB	C++14(O2)	313 Bytes	2025-2-16 16:31:05
AC	刘栌煊	41ms	6 MiB	C++14(O2)	367 Bytes	2024-8-28 19:03:51
AC	罗莎	46ms	6 MiB	C++14(O2)	250 Bytes	2024-9-2 12:42:32
AC	王嘉怡	53ms	6.3 MiB	C++14(O2)	231 Bytes	2025-5-31 10:07:02