Д. М. Златопольский (10.3.)

//без функции max
#include <iostream>
using namespace std;

int main()
{
    int a, b, z;
    int max1, max2;
    cout << "Enter the numbers a & b: \n";
    cin >> a >> b;

    if (a > 2 * b) {
        max1 = a;
    }
    else {
        max1 = 2 * b;
    }

    if (2*a-b > b) {
        max2 = 2 * a - b;
    }
    else {
        max2 = b;
    }

    z = max1 * max2;
    cout << "Number z = " << z;
}