Алексей Парастюк №30
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#include <iostream>
#include <cmath>
using std::cout;
using std::endl;
using std::cin;
int main()
{
int z;
int a;
int b;
int c;
cout << "z = ab + ac + bc" << endl;
cout << "Enter a,b,c:\n " << endl;
cin >> a;
cin >> b;
cin >> c;
z = a*b + a*c + b*c;
cout << z << endl;
return 0;
}
Cpp
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