Grupa A - Zadatak 02.cpp

#include <iostream>

using namespace std;

void upis(int niz[][3])
{
    cout << "Unesite matricu: " << endl;
    for(int i = 0; i < 2; i++)
        for(int j = 0; j < 3; j++)
            cin >> niz[i][j];
}

void kopiraj(int niz1[][3], int niz2[][5])
{
    for(int i = 0; i < 2; i++)
    {
        for(int j = 0; j < 5; j++)
        {
            if(j <= 2) niz2[i][j] = niz1[i][j];
            else niz2[i][j] = niz1[i][j-3];
        }
    }
}

int suma(int niz[], int r)
{
    int s = 0;
    for(int i = 0; i < r; i++)
        s += niz[i];
        
    return s;
    
}

int main()
{
    int niz1[2][3];
    int niz2[2][5];
    int matrica, red;
    int s;
    
    upis(niz1);
    kopiraj(niz1, niz2);
    
    do
    {
        cout << "Izaberite matricu (1/2)" << endl;
        cin >> matrica;
        cout << "Izaberite red (1/2)" << endl;
        cin >> red;
    }while((matrica < 1 || matrica > 2) && (red < 1 || red > 2));
    
    if(matrica == 1)
        s = suma(niz1[red-1], 3);
    else
        s = suma(niz2[red-1], 5);
    
    cout << "Suma " << red << ". reda " << matrica << ". matrice je " << s << endl;
    
    
    return 0;
}