公交卡充值问题?

状态	递交者	时间	内存	语言	代码	递交时间
AC	kk002	2ms	8.8 MiB	C++20	203 Bytes	2025-5-17 12:01:21
AC	kk001	2ms	8.8 MiB	C++20	239 Bytes	2025-5-17 12:08:39
AC	admin	2ms	8.8 MiB	C++20	249 Bytes	2025-5-17 12:04:57
AC	kk121	3ms	568 KiB	C++14 (O2)	240 Bytes	2026-7-21 15:17:46
AC	kk104	6ms	412 KiB	C++14 (O2)	266 Bytes	2026-7-21 12:01:59
AC	kk515	19ms	11 MiB	Python 3	144 Bytes	2025-10-31 15:39:06
AC	kk361	19ms	11.1 MiB	Python 3	140 Bytes	2025-10-31 15:34:30
AC	kk059	24ms	3.7 MiB	Python 3	127 Bytes	2026-8-3 17:57:08