「一本通 6.1 例 1」序列的第 k 个数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	C23liupeilin	36ms	404 KiB	C++14(O2)	412 Bytes	2025-4-28 19:00:26
AC	zhuangbei	37ms	408 KiB	C++11	498 Bytes	2025-4-28 17:20:21
AC	C23pengweixuan	38ms	404 KiB	C++11	475 Bytes	2025-4-28 19:05:54
AC	C23liyou	39ms	408 KiB	C++11	492 Bytes	2025-4-28 19:11:39