指针运用%相当不熟

#include<iostream>
using namespace std;
class Student
{
public:
	Student(double n,double s){
		num=n;
		score=s;}
		double score2(){
			return score;
		}
		double num2(){
			return num;
		}
	
private:
	double num;
	double score;
};
double max(Student *arr){//用来寻找并输出做高分学生的学号
	int i=0;
	double s,max=arr[i].score2();
	for(i;i<5;i++){
		if(max<=arr[i+1].score2()){
			max=arr[i+1].score2();
			s=arr[i+1].num2();
		}
	}
	return s;
}
int main(){
	Student s[5]={
		Student(1001,95.3),
		Student(1002,96.2),
		Student(1003,98.1),
		Student(1004,99.3),
		Student(1005,100.0)
	};
	cout<<"获得最高分的学生学号为："<<max(s)<<endl;;
	return 0;
}