Задача 7 (2)

#include <iostream>
using namespace std;


///////////////////////////////////////////////////////
int main()                                           //
{

    setlocale(LC_ALL, "Rus");

    int i, mk7 = 0, max = 0, mpr = 0, x, res, n = 0;

    do{
         cin >> x;

         if((x%7 == 0)&&(x%49 != 0)  &&(x > mk7)) mk7 = x;
         if((x  > max)&&(x% 7 != 0)) max = x;
         n++;

    } while(x != 0);

    cin >> res;

    mpr = mk7 * max;
    if(mpr == 0) mpr = 1;

    cout << "Введено чисел: "       << n-1 << endl;
    cout << "Контрольное значение " << res << endl;
    cout << "Вычисленное значение " << mpr << endl;
    cout << "Значения "; if(res != mpr) cout << "не ";
    cout << "совпали"  ;

return 0;
}