#include <iostream>
#include <cstdlib>
#include <time.h>
using namespace std;

void reka (int l, int m[], int n[])
{
    cout << "Podaj" << l << "wyrazow ciagu" << endl;
    for (int i=0; i<= l-1; i++)
    {


        cin >> m[i];
    }
        for (int j=0; j<=l/2; j++)
    {
        for (int i=0; i<=l-2; i++)
        {
            n[j] = +m[i];
        }
        l--;
};
return(n[j]);
}

void los(int l, int m[], int n[])
{
    int a, b, c;
    cout << "Wprowadz zakres licz do losowania: "<< endl;
    cout << "Od: "; cin >> a;
    cout << "do: "; cin >> b;
    c=b-a;
    srand(time(NULL));
    cout << "Wylosowane liczby to: ";

    for (int i=0; i<=l-1; i++)
    {
        m[i] = rand()%c+a;
        cout << m[i] << " ";
    }
    cout << endl;

    for (int j=0; j<= l/2; j++)
    {
        for (int i=0; i<=l-1; i++)
        {
            n[j]= +m[i];
        }
        l--;
    };
    return(n[j]);

}



int main()
{
    int para;
    int m[10001];
    int n[10001];
    cout << "Podaj parzysta ilosc wyrazow ciagu: " << endl;
    cin >> para ; cout << endl;
    if (para%2==0)
    {
        cout << "wybierz sposob wprowadzania danych: " << endl; cout << "1.Wpisza sam" << endl; cout<< "2.generowanie losowe" << endl;
        int r;
        cin >> r;
        switch(r)
        {
            case 1: reka(para,m,n); break;
            case 2: los(para,m,n); break;
            default: cout << "Wartosc nieprawidlowa" << endl; break;
        }
        cout << "kolejne wyrazy ciagu to: "; n[] <<
    }

    else
        cout << "Wartosc nieprawdilowa";
    return 0;
}