Răspuns:
4.
int n,s=0, c
citeste n
cat timp n!=0 { c=n%10; // luam fiecare cifra
s=s+c;
n=n/10; }
afisam s
5.
int a b
citim a b
ma=(a+b)/2 // media aritmetica
mg= sqrt(a *b) // media geometrica
mh= 2/ ( 1/a + 1/b) //media armonica
afisati ma mg mh
sqrt() - functie care calculeaza radical
