c++结构体及应用，空白求代码

Question

#include "stdio.h"#include "conio.h"#include "string.h"#define NU 35struct student{long nium;char name[10];fioat score[3];float aver_person;float sun_person,int norder;};printf(struct student *p,int cx_num){}calc_order(struct student*p){}scan(struct student*p){}main(){ (struct student stu[NU];int xuehao;scan(stu);calc_order(stu);do{ printf("请输入要查询的学生的学号(输入0表示结束):"); scanf("%d",&xuehao); print(stu,xuehao);}while(xuehao!=0);}