lab 8 z1 tchuhnya

#include <iostream>

int main()
{
    using namespace std;
    int n;
    cout << "Enter n: " << endl;
    cin >> n;
    //double** mas = new double* [n];
    double** mas = nullptr;
    mas= new double* [n];
    //double* mas2 = new double[n/2];
    double* mas2 = nullptr;
    mas2 = new double[n/2];
    for (int i = 0; i < n/2; i++)
        mas[i] = new double[n];
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)
            cin >> mas[i][j];
            //mas[i][j] = 0;
    for (int i = 0; i < n; i++)
            mas2[i] = 0;
    int z = 0;
    int k = 0;
    double sum = 0;
    double sum2 = -mas[0][0];
    /*for (int i = 0; i < n; i++)
    {
        cout << endl;
        for (int j = 0; j < n; j++)
        {
            cout << mas[i][j] << " ";
        }
    }
    cout << endl;*/
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            if (((i <= j / 2) && (j >= n / 2) && (j - i >= n / 2)) || ((i >= n / 2) && (j >= n / 2) && (j - n + i + 1 >= n / 2)))
            {   //mas[j][i] = 1;
                mas2[k] = mas[j][i];
                sum += mas2[k];
                k++;
                /*for (int t = k - 2; k >= 0; k--)
                {
                    if (mas2[t] = mas2[k])
                    {
                        z++;
                        if (z > 1)
                        {
                            sum -= mas2[k];
                        }
                    }
                    z = 0;
                }*/
            }
        }
    }
    /*for (int t = k-2; k >= 0; k--)
    {
        if (mas2[t] = mas2[k])
        {
            z++;
            if (z > 1)
            {
                sum -= z * mas2[k];
            }
        }
    }*/
    for (int t = 0; t < k - 1; k++)
    {
        z = 0;
        for (int l = 0; l < k - 1; k++)
        {
            if (mas2[t] = mas2[l])
            {
                z++;
                if (z > 1)
                {
                    sum -= mas2[t];
                }
            }
        }
    }
    cout << "Your result: " << sum << endl;
    delete[] mas;
    delete[] mas2;
    return 0;
}