给你程序源代码的概要框架吧。
typedef struct { char no[18]; ... } student;
#define STUDENT_COUNT 50
student all_students[STUDENT_COUNT];/* total 50 student */
int input_student_info()
{
scanf( ... );
}
int query_student_info()
{}
int sum_total_score(){};
int sort_by_score(){}
int select_choice(){}
int main()
{}