#include <stdio.h>
int main()
{
int grade;
int aCount = 0;
int bCount = 0;
int cCount = 0;
int dCount = 0;
int fCount = 0;
printf("Enter the letter grades.\n");
printf("Enter the EOF character to end input.\n");
while((grade = getchar())!= EOF){
switch(grade){
case 'A':
case 'a':
++aCount;
break;
case 'B':
case 'b':
++bCount;
break;
case 'C':
case 'c':
++cCount;
break;
case 'D':
case 'd':
++dCount;
break;
case 'F':
case 'f':
++fCount;
break;
case '\n':
case '\t':
case ' ':
break;
default:
printf("Incorrect letter grade entered.");
printf("Enter a new grade.\n");
break;
}
}
printf("\nTotals for each letter grade are:\n");
printf("A: %d\n" ,aCount);
printf("B: %d\n" ,bCount);
printf("C: %d\n" ,cCount);
printf("D: %d\n" ,dCount);
printf("F: %d\n" ,fCount);
system("pause");
return 0;
}
