怎样改错

#include "stdafx.h"
#include<iostream>
#include<string>
#include"math.h"
using namespace std;
class Student{
public:
Student();
void set(int No,char name,int age,int score[3]);
double ave;
private:
int stuNo;
char stuName;
int stuAge;
int stuScore[3];
};
void Student::set(int No,char name,int age,int score[3]){
stuNo=No;
stuName=name;
stuAge=age;
stuScore[3]=score[3];
}
int main(){
Student stu[5]={Student("001","wang",20,(87,79,86)),
Student("002","li",21,(67,89,75)),
Student("003","zhang",19,(86,79,93)),
Student("004","zhao",20,(93,75,87)),
Student("005","qian",22,(89,65,96))};
int i，j;
int score[3];
for( int i=1;i<=5;i++){
int sum=0;
for(int j=1;j<=3;j++)
sum+=score[j];
stu[i].ave=sum/3;
}
double max;
for(int i=0;i<5;i++){
if(stu[i].ave>stu[i].ave)
max=stu[i].ave;
else
max=stu[i+1].ave;
}
cout<<"学号\t姓名\t年龄\t三门课程的成绩\t平均成绩"<<endl;
cout<<"平均成绩的最大值"<<max<<endl;
return 0;
}