#include <iostream>

using namespace std;

int main()
{
    setlocale(LC_ALL, "Russian");

    int n;
    cout << "Введите размерность матрицы n = ";
    cin >> n;

    int **mas = new int*[n];
    for (int i = 0; i < n; ++i)
        mas[i] = new int[n];

    for (int i = 0; i < n; ++i)
    {
        for (int j = 0; j < n; j++)
        {
            cout << "mas[" << i << "][" << j << "] = ";
            cin >> mas[i][j];
        }
    }
	for (int i=0;i<n;i++)
	{
    	for (int j=0;j<n;j++)
        	cout<<a[i][j]<<"\t";
    	cout<<endl;
	}

    int value = 0, i = 0, j = n - 1, m = 0;
    int *val = new int[n*n];

    while (i < n && j > -1)
    {
        if (m % 2)
        {
            for (int k = i + m; i < k && i < n; ++i)
                val[value++] = mas[i][j];
            for (int k = n - 1; j < k; ++j)
                val[value++] = mas[i][j];

            val[value++] = mas[i][j];
            ++i;
        }
        else
        {
            for (int k = j - m; j > k && j > -1; --j)
                val[value++] = mas[i][j];
            for (int k = 0; i > k; --i)
                val[value++] = mas[i][j];

            val[value++] = mas[i][j];
            --j;
        }
        ++m;
    }
    for (int i = 0; i < n*n; ++i)
    {
        cout << "val[" << i << "] = " << val[i] << "\n";
    }

    system("pause");
    return 0;
}