统计数字字符个数

Status	Submit By	Time	Memory	Code	Submit At
AC	肖艺勋2	30ms	532 KiB	238 Bytes	2024-3-8 20:29:21
AC	梅罗1	31ms	544 KiB	252 Bytes	2024-3-8 20:32:36
AC	Mr_D	32ms	532 KiB	233 Bytes	2024-3-8 18:04:37
AC	安一谦	32ms	768 KiB	226 Bytes	2024-3-8 20:31:15
AC	周沐阳	34ms	532 KiB	231 Bytes	2024-3-8 20:28:12
AC	liyunsong	34ms	532 KiB	207 Bytes	2024-3-8 20:27:44
AC	yinjiayu	34ms	764 KiB	247 Bytes	2024-3-8 20:28:46
AC	勾晨禹	34ms	532 KiB	202 Bytes	2024-3-8 20:28:56
AC	钟卓劭	35ms	540 KiB	236 Bytes	2024-3-8 18:51:24
AC	Mr_D	36ms	540 KiB	222 Bytes	2024-3-8 20:27:03