【例3：入门】考试成绩的简单统计

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	yuhaohan	2ms	324 KiB	C++14	215 Bytes	2025-1-19 17:15:56
AC	liangbo	2ms	352 KiB	C++14	211 Bytes	2025-5-24 15:32:58
AC	liutongtong	2ms	324 KiB	C++14	227 Bytes	2025-1-10 16:52:34
AC	admin	2ms	516 KiB	C++14	227 Bytes	2025-1-10 16:42:20
AC	wangyikai	2ms	532 KiB	C++14	200 Bytes	2025-1-10 16:46:18
AC	xiaozheng	2ms	576 KiB	C++14	215 Bytes	2025-5-24 15:21:13
AC	qinmingze	2ms	548 KiB	C++17	193 Bytes	2025-5-24 9:28:21