new

#include <cstdlib>
#include <ctime>
#include <iostream>
#include <iomanip>

using namespace std;


class Massiv
{
public:
    int* RandomArray(int* arr, int sizeArr) {
        for (int y = 0; y < sizeArr; y++) {
            arr[y] = (rand() % 10 + 1);
        }
        return arr;
    }
    void set_Size(int _sizeArr) {
        sizeArr = _sizeArr;
        int *masArr = new int[sizeArr];
        double *masOtkl = new double[sizeArr];
    }
    void set_Array(int* arr, int _sizeArr) {
        masArr = arr;

    }
    double avarageValue(int* arr, int _sizeArr) {
        int sum = 0;
        for (int i = 0; i < _sizeArr; i++)
            sum += arr[i];
        _avarageValue = (double)sum / _sizeArr + sum % _sizeArr;
        return _avarageValue;
    }
    double get_AverageValueArray() {
        return avarageValue(masArr, sizeArr);
    }
    void writeArray() {
        cout << "Array: " << endl;
        for (int i = 0; i < sizeArr; i++) {
            cout << masArr[i] << " ";
        }
        cout << endl;
    }
    void get_SumOtkl() {
        for (int i = 0; i < sizeArr; i++) {
            masOtkl[i] = (double)masArr[i] - _avarageValue;
        }
        for (int i = 0; i < sizeArr; i++) {
            masOtkl[i] = masOtkl[i] * masOtkl[i];
        }
        for (int i = 0; i < sizeArr; i++) {
             sumOtkl += masOtkl[i];
        }
        cout << endl << "Summa Otkloneniya: " << fixed << sumOtkl << endl;
    }

private:
    double _avarageValue = 0.0;
    int sizeArr = 16;
    int *masArr = new int[sizeArr];
    double *masOtkl = new double[sizeArr];
    double sumOtkl = 0.0;
};

int main()
{
    srand(time(0));
    Massiv massiv;
    int razmer = 16;
    do{
        cout << "Enter Size Array: ";
        cin >> razmer;
    } while (razmer < 3);
    int* arr = new int[razmer];
    int i = 0;
    arr = massiv.RandomArray(arr, razmer);
    massiv.set_Size(razmer);
    massiv.set_Array(arr, razmer);
    massiv.writeArray();
    cout << "Avarage Value: " << fixed << massiv.get_AverageValueArray();
    massiv.get_SumOtkl();
    cin >> i;
    return 0;
}