#include <iostream>
using namespace std;
int main ()
{
double grade ;
cout <<"enter your grade" ;
cin >> grade ;
if ( (grade>=80) && (grade<100) )
{
cout << "your grade is : " << "A+";
}
else if ( (grade>=75) && (grade<80) )
{
cout<< "your grade is ; " << "A";
}
else if ( (grade>=70) && (grade<75) )
{
cout<< "your grade is ; " << "A-";
}
else if ( (grade>=65) && (grade<70) )
{
cout<< "your grade is ; " << "B+";
}
else if ( (grade>= 60) && (grade<65) )
{
cout<< "your grade is ; " << "B";
}
else if ( (grade>=55) && (grade<60) )
{
cout<< "your grade is ; " <<"B-";
}
else if ( (grade>=50) && (grade<55) )
{
cout<< "your grade is ; " << "C+";
}
else if ( (grade>=45) && (grade<50) )
{
cout<< "your grade is ; " << "C";
}
else if ( (grade>=40) && (grade<45) )
{
cout<< "your grade is ; " << "C-";
}
else if ( (grade>=0) && (grade<40) )
{
cout<< "your grade is ; " << "F";
}
return 0;
}
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