CGPA GRADE IN C++

#include <iostream>
using namespace std;

int main ()
{
    float num;

    cout<<"PLEASE ENTER THE NUMBER WHICH GET IN THE EXAM : ";
    cin>>num;

    if (num>90)
    {
        cout<<num<<" = A+"<<endl;
    }

    else if (num>85)
    {
        cout<<num<<" = A"<<endl;
    }

    else if (num>80)
    {
        cout<<num<<" = B+"<<endl;
    }
    else if (num>75)
    {
        cout<<num<<" = B"<<endl;
    }
    else if (num>70)
    {
        cout<<num<<" = C+"<<endl;
    }
    else if (num>65)
    {
        cout<<num<<" = C"<<endl;
    }
    else if (num>60)
    {
        cout<<num<<" = D+"<<endl;
    }
    else if (num>50)
    {
        cout<<num<<" = D"<<endl;
    }
    else
    {
        cout<<num<<" = FAIL !!!"<<endl;
    }

    return 0;
}

OUTPUT