【例23.3】简单计算器

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	2024413443孙京政	7ms	516 KiB	C	806 Bytes	2025-1-26 23:13:47
AC	2024413393刘梦棣	7ms	520 KiB	C	736 Bytes	2025-1-21 15:46:55
AC	2024413418冷兴隆	11ms	552 KiB	C++11(O2)	446 Bytes	2025-1-21 15:28:03
AC	2024413322陈一鸣	12ms	536 KiB	C++11(O2)	441 Bytes	2025-1-24 14:52:15
AC	2024413603潘志强	15ms	536 KiB	C++11(O2)	426 Bytes	2025-1-17 19:14:22
AC	2024413407	15ms	764 KiB	C++11(O2)	388 Bytes	2025-1-18 9:03:13
AC	2024413681王凯	171ms	4 MiB	Python 3	571 Bytes	2025-1-17 23:16:45