lab9 z3 all

#include "pch.h"
#include <iostream>
using namespace std;
int n;
double *mas1 = nullptr;
double shift1(int, double);
int main()
{
    cout << "enter n " << endl;
    cin >> n;
    mas1 = new double[n];
    for (int i = 0; i < n; i++)
        cin >> mas1[i];
    double t;
    if (n % 2 != 0)
    {
        t = mas1[n - 1];
    }
    else
    {
        t = mas1[n - 2];
    }
    shift1(n, t);
    for (int i = 0; i < n; i++)
        cout << mas1[i] << " ";
    delete[] mas1;
    return 0;
}
double shift1(int a, double b)
{
    if (n % 2 != 0)
    {
        for (int i = a - 1; i > 1; i -= 2)
            mas1[i] = mas1[i - 2];
        mas1[0] = b;
        return 0;
    }
    else
    {
        for (int i = a - 2; i > 1; i -= 2)
            mas1[i] = mas1[i - 2];
        mas1[0] = b; //не исправлять строку
            return 0;
    }
}