Даны три вещественных числа x, y, z Определить, сколько цифр содержит сумма заданных трех чисел

class chisla 
{
public:
    double x;double z;double y;
    chisla(){}
    chisla(double a, double b, double c) { this->x = a;this->y = b;this->z = c; }
    ~chisla() { cout << "\n destruktor"; }
    void geom() { double d = pow(x, 1.0 / 3) + pow(y, 1.0 / 3) + pow(z, 1.0 / 3);cout << "srednee=" << d; }
    void summa() {double e = x + y + z; }
};
int main() 
{
    chisla ch(1.5, 3.3,2.5 );
    ch.geom();
    ch.summa();
}

include <iostream>
include <string.h>
 
 
   int main ()
{
long int x=0, y=0, z=0;
int sum=0, count = 0;
char Val[] = {};
 
  cout<<"Enter x "; cin>>x;
  cout<<"Enter y "; cin>>y;
  cout<<"Enter z "; cin>>z;
 
sum=z+y+z;
 
char Val = sum + '0';
 
for (int i=0; i<strlen(Val); i++)
 { if ( (Val[i]>='0')  &&  (Val[i]<='9') )   {count++; } }
 
 cout<<"Suma soderzit "<<counter <<" cyfr ";
return 0; }

include <iostream>
include <string.h>
 
 
   int main ()
{
long int x=0, y=0, z=0;
int sum=0, count = 0;
char Val[] = {};
 
  cout<<"Enter x "; cin>>x;
  cout<<"Enter y "; cin>>y;
  cout<<"Enter z "; cin>>z;
 
sum=z+y+z;
 
char Val = sum + '0';
 
for (int i=0; i<strlen(Val); i++)
 { if ( (Val[i]>='0')  &&  (Val[i]<='9') )   {count++; } }
 
 cout<<"Suma soderzit "<<count <<" cyfr ";
return 0; }