统计满足条件的4位数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	BC20280058	20ms	504 KiB	C++17(O2)	321 Bytes	2026-1-16 11:00:05
AC	BC20280026	20ms	504 KiB	C++14(O2)	303 Bytes	2026-1-16 11:09:30
AC	BC20280018	20ms	380 KiB	C++17(O2)	263 Bytes	2025-12-20 11:44:51
AC	BC20280020	20ms	504 KiB	C++14(O2)	296 Bytes	2026-1-16 11:19:52
AC	BC20280008	20ms	388 KiB	C++17(O2)	238 Bytes	2026-1-16 10:35:50
AC	BC20280065	21ms	504 KiB	C++17(O2)	399 Bytes	2026-1-16 11:23:19
AC	BC20280079	21ms	380 KiB	C++14(O2)	295 Bytes	2026-1-16 10:51:54
AC	BC20280062	21ms	376 KiB	C++17(O2)	247 Bytes	2026-1-16 11:39:23
AC	BC20280075	21ms	504 KiB	C++17(O2)	348 Bytes	2026-1-16 11:31:21
AC	BC20280069	21ms	508 KiB	C++14(O2)	312 Bytes	2026-1-16 11:07:16
AC	BC20280012	21ms	504 KiB	C++14(O2)	188 Bytes	2026-1-16 11:38:44
AC	BC20280067	22ms	504 KiB	C++17(O2)	357 Bytes	2026-1-16 10:43:28
AC	BC20280021	22ms	388 KiB	C++14(O2)	250 Bytes	2026-1-16 11:24:19
AC	BC20280407	22ms	508 KiB	C++14(O2)	337 Bytes	2026-1-16 11:36:33
AC	BC20280086	22ms	504 KiB	C++17(O2)	181 Bytes	2026-1-16 10:40:58
AC	BC20280411	22ms	384 KiB	C++14(O2)	406 Bytes	2026-1-16 12:08:34
AC	BC20280034	23ms	504 KiB	C++17(O2)	184 Bytes	2026-1-16 10:56:18
AC	BC20280013	23ms	508 KiB	C++17(O2)	431 Bytes	2026-1-16 11:18:42
AC	BC20280418	23ms	504 KiB	C++14(O2)	313 Bytes	2026-1-16 12:05:19
AC	BC20280422	232ms	3.4 MiB	Python 3	162 Bytes	2026-1-16 11:34:58