含k个3的数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	BC20280018	20ms	504 KiB	C++17(O2)	233 Bytes	2025-11-21 11:44:18
AC	BC20280086	20ms	504 KiB	C++17(O2)	233 Bytes	2025-11-21 11:40:49
AC	BC20280006	20ms	504 KiB	C++17(O2)	285 Bytes	2025-11-21 11:58:19
AC	BC20280075	20ms	504 KiB	C++17(O2)	285 Bytes	2025-11-21 11:43:57
AC	BC20280065	20ms	504 KiB	C++17(O2)	439 Bytes	2025-11-28 11:24:49
AC	BC20280061	20ms	508 KiB	C++17(O2)	308 Bytes	2025-11-21 11:49:00
AC	BC20280013	20ms	504 KiB	C++17(O2)	404 Bytes	2025-11-21 11:54:00
AC	BC20280081	21ms	384 KiB	C++17(O2)	439 Bytes	2025-11-21 11:39:22
AC	BC20280093	21ms	504 KiB	C++17(O2)	302 Bytes	2025-11-21 11:45:37
AC	BC20280107	21ms	380 KiB	C++17(O2)	325 Bytes	2025-11-21 11:52:56
AC	BC20280021	21ms	508 KiB	C++17(O2)	233 Bytes	2025-11-21 11:41:48
AC	BC20280058	21ms	504 KiB	C++17(O2)	219 Bytes	2025-11-21 11:43:45
AC	BC20280062	21ms	384 KiB	C++17(O2)	319 Bytes	2025-11-21 11:45:43
AC	BC20280421	21ms	504 KiB	C++17(O2)	304 Bytes	2025-11-21 11:47:36
AC	BC20280026	21ms	504 KiB	C++17(O2)	453 Bytes	2025-11-21 11:42:49
AC	BC20280078	21ms	380 KiB	C++17(O2)	285 Bytes	2025-11-21 11:51:26
AC	BC20280067	21ms	504 KiB	C++17(O2)	327 Bytes	2025-11-21 12:01:00
AC	BC20280407	21ms	504 KiB	C++17(O2)	347 Bytes	2025-11-21 12:11:51
AC	liangzexian	21ms	504 KiB	C++17(O2)	306 Bytes	2025-11-21 11:42:00
AC	BC20280063	21ms	384 KiB	C++17(O2)	304 Bytes	2025-11-21 12:18:54
AC	BC20280069	21ms	504 KiB	C++17(O2)	329 Bytes	2025-11-21 11:42:19
AC	BC20280012	23ms	504 KiB	C++17(O2)	302 Bytes	2025-11-21 11:50:51