#include <iostream>
#include <ctime>
#include <sstream>

using namespace std;

int  pz, zr, sumz, sumr, minn, maxx, maxx2, minn2,minn3, s, y, i, rnd = 0;
float b;
string l;
int er[4][4], kr[4], kz[4];

void arrayF()         // masiva aizp.
{
 srand(time(0));
    zr = 0;
    cout << " Ka aizpildit masivu?" << endl;
    do
    {
        cout << "1 = auto, 2 = manual " << endl;
        cin >> l;
        stringstream be(l);
        be >> b;
        if (b == 1)
        {
            cout << " Masiva automatiska aizpildisana " << endl;
            for (y = 0; y < 4; y++)
            {
                for (i = 0; i < 4; i++)
                {
                    er[y][i] = rand() % 30 - 20;
                }
            }
            zr = 1;
        }
        if (b == 2)
        {
            cout << " Masiva manuala aizpildisana " << endl;
            for (y = 0; y < 4; y++)
            {
                for (i = 0; i < 4; i++)
                {
                    cin >> s;
                    er[y][i] = s;
                    s = 0;
                }
            }
            zr = 1;
        }
    } while (zr == 0);
}

int main()
{
    arrayF();
    cout << endl;
 system("cls");

           //1

    cout << "\n Masivs 16  ";
    cout << endl
    << endl; pz=0;
    for (y = 0; y < 4; y++)
    {
        for (i = 0; i < 4; i++)
        {
            if (er[y][i] > 0)
                pz = pz + 1;
            cout << "\t" << er[y][i];
        }
        cout << "\n";
    }
    cout << "\n Pozitivo skaitlu daudzums = " << pz << endl;
    cout << endl;
    cout << endl;
    arrayF();
    cout << endl;
    cout << "\n 2. uzd" << endl;
cin.get();
 system("cls");

                       //2


    cout << "\n Masivs 16 ";
    cout << endl;
    for (y = 0; y < 4; y++)
    {
        for (i = 0; i < 4; i++)
        {
            if (i == 1)
            {
                sumz = sumz + er[y][i];
                kr[y] = er[y][i];
            }
            if (i == 3)
            {
                sumr = sumr + er[y][i];
                kz[y] = er[y][i];
            }
            cout << "\t" << er[y][i];
        }
        cout << "\n";
    }
    cout << "\n Pat summa (2) = ";
    for (i = 0; i < 4; i++)
    {
        if (kr[i] < 0 && i == 3)
            cout << "(" << kr[i] << ") = ";

        if (kr[i] > 0 && i == 3)
            cout << kr[i] << " = ";

        if (kr[i] < 0 && i < 3)
            cout << "(" << kr[i] << ") + ";

        if (kr[i] >= 0 && i < 3)
            cout << kr[i] << " + ";
    }
    cout << sumz << endl;
    cout << endl;
    cout << "\n Pat summa (4) = ";
    for (i = 0; i < 4; i++)
    {
        if (kz[i] < 0 && i == 3)
            cout << "(" << kz[i] << ") = ";

        if (kz[i] > 0 && i == 3)
            cout << kz[i] << " = ";

        if (kz[i] < 0 && i < 3)
            cout << "(" << kz[i] << ") + ";

        if (kz[i] >= 0 && i < 3)
            cout << kz[i] << " + ";
    }
    cout << sumr << endl;
    cout << endl;
    cout << endl;
    arrayF();
    cout << endl;
cin.get();
 system("cls");

            //3

    cout << "\n Masivs 16 " << endl;
    cout << endl;
    for (y = 0; y < 4; y++)
    {
        cout << y + 1 << ")";
        minn3 = er[y][0];

        for (i = 0; i < 4; i++)
        {
            cout << "\t" << er[y][i];

            if (er[y][i] < minn3)
            {
                minn3 = er[y][i];
            }
        }
        cout << "\t Mazakais =" << minn3;
        cout << "\n";
    }
    cout << endl;
    cout << endl;
    arrayF();
    cout << endl;
    pz = 0;
cin.get();
 system("cls");


             //4

    cout << "\n Masivs 16 " << endl;
    cout << endl;
    for (y = 0; y < 4; y++)
    {
        pz = 0;
        cout << y + 1 << ")";
        for (i = 0; i < 4; i++)
        {
            cout << "\t" << er[y][i];
            if (er[y][i] > 0)
                pz = pz + 1;
        }
        cout << "\n";
        if (pz == 4 && rnd == 0)
        {
            rnd = y + 1;
        }
    }
    cout << "\n Pozitiva linija = " << rnd << endl;
    cout << endl;

    cout << endl;
    arrayF();
    cout << endl;
cin.get();
 system("cls");


    //5uzd

    cout << "\n Masivs 16 pirms apmainas " << endl;

    cout << endl;
    minn = maxx = er[0][0];
    minn2 = maxx2 = 1;

    for (y = 0; y < 4; y++)
    {
        cout << y + 1 << ")";
        for (i = 0; i < 4; i++)
        {
            cout << "\t" << er[y][i];
            if (er[y][i] < minn)
            {
                minn = er[y][i];
                minn2 = y + 1;
            }

            if (er[y][i] > maxx)
            {
                maxx = er[y][i];
                maxx2 = y + 1;
            }
        }
        cout << "\n";
    }
    cout << "\n Mazakais skaitlis =  " << minn << "\t Mazaka skaitla rinda = " << minn2 << endl;
    cout << "\n Lielakais skaits =  " << maxx << "\t Lielaka numuru rinda = " << maxx2 << endl;
    for (i = 0; i < 4; i++)
    {
        swap(er[maxx2 - 1][i], er[minn2 - 1][i]);
    }
    cout << "\n Masivs 16 pec mijmainas " << endl;
    cout << endl;
    for (y = 0; y < 4; y++)
    {
        cout << y + 1 << ")";
        for (i = 0; i < 4; i++)
        {
            cout << "\t" << er[y][i];
        }
        cout << "\n";
    }

    cout << endl;
    cin.get();
    system("pause");
    return 0;

}