For instance, grade scale is: A=4.0, B=3.0, C=2.0, D=1.0, F=0;
and you have three classes need to add up and calculate the GPA, which the grades are: one, two, three;
equivalent credits for each grade is: oneC, twoC, threeC;
formula is: grade * equivalent credit = weighted grade
(sum of all weighted grades)/(sum of all credits) = GPA
so it's like (one*oneC + two*twoC + three*threeC)/(oneC+twoC+threeC)=GPA
So, here is my question; i just need to cin 3 times, which are any among (a,b,c,d,f), then get the GPA cout. What is the most effective and simple way to do it ?