iva_kursova

#include <iostream>
#include <conio.h>

using namespace std;

int enterArr(int[], int);
int reverseArr(int[], int, int[]);
int uptobot(int[], int);
void showArr(int[], int);

int main() {

    int Arr[30], Arr2[30], n, ch;

    cout << "Enter Size of Array ";
    cin >> n;

    if (n > 30 || !cin || n < 0) {
        cout << "Error: Invalid input!";
        return 0;
    }

    do
    {
        cout << " MENU \n";
        cout << "1. Create array \n";
        cout << "2. Overwrite the array into another array \n";
        cout << "3. Listed in descending order \n";
        cout << "4. Display the arrays \n";
        cout << "5. Exit \n";

        do {
            cout << "\n    Make your choice: ";
            cin >> ch;
        } while (ch < 1 || ch>5);

        switch (ch) {
        case 1:
            enterArr(Arr, n);

            system("cls");
            break;
        case 2:
            reverseArr(Arr, n, Arr2);

            cout << "\n Array copied to another array!\n";

            _getch();
            system("cls");
            break;
        case 3:
            uptobot(Arr2, n);
            cout << "\n Array reversed!";

            _getch();
            system("cls");
            break;
        case 4:

            cout << "Original Array:\n\n";
            showArr(Arr, n);

            cout << "\n\nCopied & Reversed Array:\n\n";
            showArr(Arr2, n);

            _getch();
            system("cls");
            break;
        }
    } while (ch != 5);

    return 0;
}


int enterArr(int arr[], int size) {
    for (int i = 0; i < size; i++) {
        cout << "Array[" << i << "] = ";
        cin >> arr[i];
    }

    return *arr;
}

int reverseArr(int arr[], int size, int arr2[]) {
    for (int i = 0; i < size; i++)
        arr2[i] = arr[i];

    return *arr2;
}

int uptobot(int arr[], int size) {

    for (int i = 0; i < size / 2; ++i) {
        int temp = arr[i];
        arr[i] = arr[size - i - 1];
        arr[size - i - 1] = temp;
    }

    return *arr;
}

void showArr(int arr[], int size) {
    for (int i = 0; i < size; i++)
        cout << "Array[" << i << "] = " << arr[i] << endl;
}