#include <iostream>
using namespace std;

int* fun(int *tab1, int *tab2, int size) {
    int i,x,y,s1 = 0,s2 = 0;
    for (i = 0; i < size; ++i) {
        x = tab1[i];
        y = tab2[i];
        tab1[i] = y;
        tab2[i] = x;
        s1 += y;
        s2 += x;
    }
    return s1 > s2 ? tab1 : tab2;
}

void printTable(int *tab, int size) {
    int i;
    for (i = 0; i < size; ++i) cout << tab[i] << " ";
    cout << endl;
}

int main() {
    int tab1[] = {1,2,3}, tab2[] = {4,5,6}, *tab3;

    cout << "tab1 przed: "; printTable(tab1,3);
    cout << "tab2 przed: "; printTable(tab2,3);
    tab3 = fun(tab1,tab2,3);
    cout << "tab1    po: "; printTable(tab1,3);
    cout << "tab2    po: "; printTable(tab2,3);
    cout << "tab3      : "; printTable(tab3,3);
}