Question

How would i be able to use If/else statements on this code for it to give me a letter grade at the end?

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
        double grade1, grade2, grade3, grade4, total;

        cout << "please enter the first grade : ";
        cin >> grade1;
        cout << "Please enter the second grade : ";
        cin >> grade2;
        cout << "Please enter the third grade : ";
        cin >> grade3;
        cout << "Please enter the fourth grade : ";
        cin >> grade4;

        total = (grade1 + grade2 + grade3 + grade4) / 4;

        cout << "The average grade is : " << setprecision(6) << total << endl;
        return 0;
} 

Answer 1

#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    double grade1, grade2, grade3, grade4, total;

    cout << "please enter the first grade : ";
    cin >> grade1;
    cout << "Please enter the second grade : ";
    cin >> grade2;
    cout << "Please enter the third grade : ";
    cin >> grade3;
    cout << "Please enter the fourth grade : ";
    cin >> grade4;

    total = (grade1 + grade2 + grade3 + grade4) / 4;

    cout << "The average grade is : " << setprecision(6) << total << endl;

    char letterGrade;
    if (total >= 90)
        letterGrade = 'A';
    else if (total >= 80)
        letterGrade = 'B';
    else if (total >= 70)
        letterGrade = 'C';
    else if (total >= 60)
        letterGrade = 'D';
    else
        letterGrade = 'F';
    cout << "Letter grade is " << letterGrade << endl;
    return 0;
}