学生信息按序输出 冒泡排序 C++变量引用

#include"iostream"
#include"string"
using namespace std;

class student
{
public:
int number;
string name;
int score;
void paixu(int n,student a[]);
void swap(student &b,student &c);
};

int main()
{
int i,n;
student a[10];
cout<<"please enter n(n<=10):";
cin>>n;
for(i=0;i<n;i++)
{
cout<<"please enter number,name and score:"<<endl;
cin>>a[i].number>>a[i].name>>a[i].score;
}

a[10].paixu(n,a);

cout<<"After sorted:"<<endl;
for(i=0;i<n;i++)
cout<<" "<<a[i].number<<" "<<a[i].name<<" "<<a[i].score<<endl;
cout<<endl;
return 0;
}//mian函数

void student::paixu(int n,student a[])
{
int i,j;
for(i=1;i<n;i++)
for(j=0;j<n-i;j++)
if(a[j].number>a[j+1].number)
swap(a[j],a[j+1]);
}

void student:: swap(student &b,student &c)
{
student temp;

temp=b;
b=c;
c=temp;

}