统计数字字符个数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	昊昊	9ms	380 KiB	C++14	253 Bytes	2025-2-14 11:25:06
AC	穆思辰	9ms	428 KiB	C++98	245 Bytes	2026-7-2 9:29:22
AC	王若兰	9ms	404 KiB	C++14	247 Bytes	2025-2-8 11:08:27
AC	xinao	10ms	412 KiB	C++17	272 Bytes	2026-5-1 20:59:36
AC	adler	10ms	376 KiB	C++14	285 Bytes	2024-12-20 23:41:25
AC	jiang	10ms	432 KiB	C++98	289 Bytes	2026-6-15 17:55:24
AC	宇轩	10ms	416 KiB	C++14	228 Bytes	2025-2-14 22:13:34
AC	杜蓉蓉	11ms	376 KiB	C++14	239 Bytes	2025-2-8 11:10:31
AC	余尚儒	12ms	380 KiB	C++14	227 Bytes	2025-2-14 11:31:54
AC	cherry	12ms	376 KiB	C++14	248 Bytes	2025-2-8 11:05:51