【二分答案3】购物系统的降级策略

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	xiaozhaogo	853ms	7.4 MiB	C++11	2 KiB	2025-9-2 17:05:33
AC	jibai	1568ms	7.4 MiB	C++11	1.4 KiB	2025-4-4 22:33:27
AC	xzy-bit	2091ms	45.3 MiB	Python 3	888 Bytes	2025-7-14 21:53:00
AC	CodeFune0b70bed38	2137ms	21.7 MiB	Python 3	694 Bytes	2025-8-4 8:27:49