Samogłoski
#include <stdio.h>
#include <stdlib.h>

int main (void)
{
    char tab[]={'a','e','i','o','u','y'}, i;
    char c;
    int suma=0;
    do
    {
        scanf ("%c", &c);
        for (i=0; i<6; i++)//bo jest 6 liter w tablicy
        {
            if (c!=tab[i]) suma ++;
        }
    }
    while ((c<='z'&&c>='a')||(c<='Z'&&c>='A')||(c==' '));
    printf ("%d", suma);
    system ("PAUSE");
    getchar ();
    return 0;
}