Maximum value in Array

#include"stdafx.h"
#include<iostream>
using namespace std;
int main()
{
int ary[10],max;
for(int i=1;i<10;i++)
{
cout<<"ENTER MARKS OF STUDENT NO. "<<i<<endl;
cin>>ary[i];
}
max=ary[0];
for(int i=0;i<10;i++)
if(max<ary[i])
max=ary[i];
cout<<"HIGHEST MARKS ARE "<<max<<endl;

return 0;
}