# include < iostream >
using namespace std ;
int main () {
char text[ 1000 ], litereDistincte [ 100 ];
int frecventa[ 100 ] = { 0 }, nrLitDist = 0 ;
cout << " Introduceti textul: " ;
cin. getline (text, 1000 );
// eliminam spatiile si semnele de punctuatie
for ( int i = 0 ; text[i] != '\0' ; i++) {
if ((text[i] >= 'a' && text[i] <= 'z' ) || (text[i] >= 'A' && text[i] <= 'Z' )) {
// convertim literele mari in litere mici
if (text[i] >= 'A' && text[i] <= 'Z' ) {
text[i] = text[i] - 'A' + 'a' ;
}
// verificam daca litera exista deja in litereDistincte
bool gasit = false ;
for ( int j = 0 ; j < nrLitDist ; j++) {
if (text[i] == litereDistincte [j]) {
gasit = true ;
frecventa[j]++;
break ;
}
}
// daca litera nu exista, o adaugam in litereDistincte
if (! gasit ) {
litereDistincte [ nrLitDist ] = text[i];
frecventa[ nrLitDist ] = 1 ;
nrLitDist ++;
}
}
}
// afisam numarul de litere distincte si frecventa lor
cout << "\ nNumarul de litere distincte: " << nrLitDist << endl ;
cout << "Frecventa literelor distincte:\n" ;
for ( int i = 0 ; i < nrLitDist ; i++) {
cout << litereDistincte [i] << " - " << frecventa[i] << endl ;
}
return 0 ;
}