含k个3的数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	xinao	17ms	376 KiB	C++14	216 Bytes	2023-7-1 19:27:30
AC	haoran	17ms	996 KiB	C++17	274 Bytes	2023-3-31 18:43:12
AC	adler	18ms	380 KiB	C++14	297 Bytes	2024-3-28 14:27:46
AC	haoran	19ms	376 KiB	C++17	349 Bytes	2023-3-26 16:23:05
AC	adler	20ms	384 KiB	C++17	216 Bytes	2023-5-21 22:05:43
AC	昊昊	22ms	412 KiB	C++14	218 Bytes	2025-12-20 20:21:19
AC	宇轩	22ms	504 KiB	C++14	241 Bytes	2025-11-9 20:21:46
AC	adler	23ms	520 KiB	C++17	216 Bytes	2023-5-21 19:32:49
AC	adler	28ms	1.4 MiB	C++17	216 Bytes	2023-5-16 19:29:48
AC	qige	53ms	636 KiB	C++14	267 Bytes	2023-5-18 21:01:34
AC	haiyang	206ms	3.4 MiB	Python 3	427 Bytes	2023-12-1 19:10:13