sample program of c++

this is a program of ranges of grades whether we are :
* excellent
* good
* fair
* poor
* or out of range

CODE:

#include<iostream>
using namespace std;
int main(void)
{
int grade;
cout<<” Enter your grade:”;
cin>>grade;
if(grade>=90 && grade<=100)
cout<<“excellent\n”;
else if(grade>=80 && grade<=89)
cout<<“good\n”;
else if(grade>=75 && grade<=79)
cout<<“fair\n”;
else if(grade>=50 && grade<=74)
cout<<“poor\n”;
else
cout<<“out of range\n”;
return 0;
}