Question

sa se determine cate cifre care reprezinta numere prime are un numar x citit de la tastatura.
EX:pentru n=524789 se afiseaza 3

Answer 1

#include<iostream.h>
unsigned long a, n, q=0, i, d=0;
void main()
{
cout<<"n="; cin>>n;
while(n)
{
a=n%10;
q=0;
for(i=1;i<=a;i++)
if(a%i==0)
q++;
if(q==2)
d++;
n=n/10;
}
cout<<d;
}