Răspuns:
#include <iostream>
using namespace std;
int main() {
int x,y,z,max,min;
cout<<"x="; cin>>x;
cout<<"y="; cin>>y;
cout<<"z="; cin>>z;
max=x;
if(y>max)
max=y;
if(z>max)
max=z;
min=x;
if(y<min)
min=y;
if(z<min)
min=z;
int d;
d=max-min;
cout<<d;
return 0;
}
E in C++. Nu e cea mai perfecta rezolvare, dar isi face treaba, cel putin din testele mele.