Merhaba arkadaşlar.
#include <stdio.h>
int main (****)
{
int grade;
unsigned int Ac = 0, Bc = 0, Cc = 0, Dc = 0, Ec = 0, Fc = 0;
puts ("Enter the letter grades.");
puts ("Enter EOF character to end input.");
while (( grade = getchar () ) != EOF )
{
switch (grade)
{
case 'A'...