#include "stdlib.h"
#include "iostream.h"

struct towar {
int id;
char nazwa[255];
float cena;
float ilosc;       
} ;

float suma(towar &t1, towar t2) {
      if(t1.id == t2.id) {
      t1.ilosc += t2.ilosc;
      return 1;         
      }
      else {
      return 0;     
      }
}

int main() {
towar t1 = {1, "Maslo", 2.80, 500};
towar t2 = {1, "Maslo", 2.80, 300};
cout << suma(t1, t2) << " " << t1.ilosc << endl;
system("pause");
}