Algorytm5 C++ interrupt

#include <iostream>

using namespace std;

int main()
{
    int i, a, x, suma;

    i = 0;
    a = 2;
    x = 4;
    suma = 0;

    // Wypisuje startowe wartości
    cout << "i = " << i << endl;
    cout << "a = " << a << endl;
    cout << "x = " << x << endl;
    cout << "suma = " << suma << endl;

    cout << endl;

    for(;i < 4;)
    {
        cout << i << " < 4: ";

        //Wyświetla boolowską reprezentację i < 4
        if(i < 4)
        {
            cout << "TAK" << endl;
        }

        else
        {
            cout << "NIE" << endl;
        }
        //i:=i+1
        cout << i << " + 1 =";
        i++;
        cout << i  <<endl;

        if(!(i<4))
        {
            cout << "Wybijam z pętli!" <<endl;
            break;
        }

        //suma:=suma+a
        cout << suma << " + " << a;
        suma = suma + a;
        cout << " = " << suma  <<endl;
        //a:=a+x
        cout << a << " + " << x;
        a = a + x;
        cout << " = " << a << endl << endl;
    }
    //Wyświetla boolowską reprezentację i < 4
    cout << i << " < 4: ";
    if(i < 4)
    {
        cout << "TAK";
    }

    else
    {
        cout << "NIE";
    }

    cout << endl << suma;

    return 0;

}