#include <iostream>
using namespace std;
int main()
{
int grade;
cout << "Please enter the marks to find the grade" << endl;
cin >> grade;
if(grade >=90)
{
cout << "student has got a grade A" << endl;
}
else if(grade >= 80)
{
cout << "student has got a grade B" << endl;
}
else if(grade >= 70)
{
cout << "student has got a grade C" << endl;
}
else if(grade >= 60)
{
cout << "student has got a grade D" << endl;
}
else
{
cout << "student has got F"<< endl;
}
return 0;
}
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