指向学生类的指针

/*
*copyright(c) 2016烟台大学计算机学院
*All rights reserved
*文件名称：test.cpp
*作者：杨昊
*版本：v6.0
*
*问题描述：　只想学生类的指针
*输入描述：无
*程序输出：
*/
#include<iostream>
using namespace std;
class Student
{
public:
Student(int n=0,double s=0):num(n),score(s){}
int getnum()
{
return num;
}
double getscore()
{
return score;
}
void shuchu()
{
cout<<num<<"  "<<score<<endl;
}
private:
int num;   //学号
double score;   //成绩
};

int max(Student *arr)
{
double max1=arr[0].getscore();
int k=0;
for(int i=1; i<5; i++)
if(arr[i].getscore()>max1)
{
max1=arr[i].getscore();
k=i;
}
return arr[k].getnum();
}

int main()
{
int i;
Student stud[5]=
{
Student(101,78.5),Student(102,85.5),Student(103,100),
Student(104,98.5),Student(105,95.5)
};
for(i=0;i<5;)
{
stud[i].shuchu();
i=i+2;
}

cout<<"5个学生中成绩最高者的学号为: "<<max(stud)<<endl;
return 0;
}