#include <stdio.h>
#include <iostream>

using namespace std;

// funkce pro konverzi vstupnich hodnot do bin, NEEDITOVAT!!!
void convert(short bin, char *str)
{
    unsigned short mask;


    mask = 0x8000;
    while (mask)
    {
        if (bin & mask)
              *str = '1';
          else
              *str = '0';
        str++;
        mask >>= 1;
    }
    *str = 0;
}

// ZACATEK HLAVNI FUNKCE main()
 int main()
{
 int  cislo1, cislo2; // mensenec a mensitel
 int  doplnek;
 char pole[20];
 int soucet = 0;
 int rozdil = 0;
 const int posunuti = 127;

 cout << "\nZadejte cislo A: ";
 cin >> cislo1;
 cout << "\nZadejte cislo B: ";
 cin >> cislo2;

 int A = cislo1 + posunuti;
 int B = cislo2 + posunuti;

 convert(A,pole);
 cout << "\nCislo A s posunutim: " << A << " v binarni soustave " << pole;
 convert(B,pole);
 cout << "\nCislo B s posunutim: " << B << " v binarni soustave " << pole;

 soucet = A + B - 254;
 rozdil = (A + (B-2*cislo2))-254;

 convert(soucet, pole);
 cout << "\n\nSoucet cisel " << A << " a " << B << " je: " << soucet << " binarne " << pole;

 convert(rozdil, pole);
 cout << "\nRozdil cisel " << A << " a " << B << " je: " << rozdil << " binarne " << pole;

 doplnek = ~cislo2 + 1;
 int rozdil2 = cislo1 + doplnek;

 convert(rozdil2, pole);
 cout << "\nRozdil cisel " << A << " a " << B << " je: " << rozdil2 << " binarne " << pole;

 getchar();
 getchar();
 return 0;

}