SOURCE FILE: 150_multiway_formC.cpp
#include <iostream>
using namespace std ;
int main (void)
{
double score ;
char letterGrade ;
do
{
cout << endl ;
cout << "Please enter the score you received on the test \n" ;
cout << "or assignment (a real number from 0 to 120): " ;
cin >> score ;
if (score < 0 || score > 120)
cout << "\nPlease enter a score in the specified range.\n" ;
} while (score < 0 || score > 120) ;
if (score >= 91.5) letterGrade = 'A' ;
else if (score >= 81.5) letterGrade = 'B' ;
else if (score >= 71.5) letterGrade = 'C' ;
else if (score >= 61.5) letterGrade = 'D' ;
else /* score < 61.5 */ letterGrade = 'F' ;
cout << "\nYour letter grade is " << letterGrade << ".\n\n" ;
return 0;
}