What is the mistake in this program ?? :)

Question

#include <iostream>
using namespace std;
int main()
'{
int counter=1;
int grade,sum;
sum=0;
grade=0;
while(counter<=6)
{cout<<"the grade of student "<<counter<<endl;
cin>>grade;
sum=sum+grade;
counter++
}
cout<<"the average is ="<<sum/6<<endl;
return 0

Answer 1

thank you Moksh for ur help 😊
iam grateful to u 😊