It seems the maximum your total grade sum can be is 1, so try dividing the testing conditions by 100.
This code in particular needs to be changed,
cout <<"Letter grade: ";
73...
Type: Posts; User: Tikod
It seems the maximum your total grade sum can be is 1, so try dividing the testing conditions by 100.
This code in particular needs to be changed,
cout <<"Letter grade: ";
73...