i)
#include<iostream>
#include<math.h>
using namespace std;
int main()
{
int a,b,c,OK,nr = 0,i;
cin>>a>>b>>c;
OK = 1;
for(i = 2; i <= sqrt(a); ++i)
{
if(a % i == 0) OK = 0;
}
if(OK == 1) nr++;
OK = 1;
for(i = 2; i <= sqrt(b); ++i)
{
if(b % i == 0) OK = 0;
}
if(OK == 1) nr++;
OK = 1;
for(i = 2; i <= sqrt(c); ++i)
{
if(c % i == 0) OK = 0;
}
if(OK == 1) nr++;
cout<<nr;
return 0;
sau
#include<iostream>
#include<math.h>
using namespace std;
int main()
{
int n = 1,nr,c = 0,i,OK;
while(n<=3)
{
cin>>nr;
OK = 1;
for(i = 2; i <= sqrt(nr); ++i)
{
if(nr % i == 0) OK = 0;
}
if(OK == 1) c++;
n++;
}
cout<<c;
return 0;
}
h)
#include<iostream>
using namespace std;
int main()
{
int a,b,c,nr_cifre = 0,nr = 0;
cin>>a>>b>>c;
while(a != 0)
{
nr_cifre++;
a=a/10;
}
if(nr_cifre == 2) nr++;
nr_cifre = 0;
while(b != 0)
{
nr_cifre++;
b=b/10;
}
if(nr_cifre == 2) nr++;
nr_cifre = 0;
while(c != 0)
{
nr_cifre++;
c=c/10;
}
if(nr_cifre == 2) nr++;
cout<<nr;
return 0;
}