5.

#include <iostream>

using namespace std;
int main()
{
    int **mas1, *mas2;
    size_t n, m;

    cout << "vvedite N:" << endl;
    cin >> n;
    cout << "vvedite M:" << endl;
    cin >> m;


    mas1 = new int*[n];
    for (size_t i = 0; i < n; ++i)
        mas1[i] = new int[m];

    mas2 = new int[n]();

    for (size_t i = 0; i < n; ++i) {
        cout << "Vvedite stroku[" << i + 1 << "] " << endl;
        for (size_t j = 0; j < m; ++j)
            cin >> mas1[i][j];
    }

    cout << endl;
    for (size_t i = 0; i < n; ++i)
    {
        for (size_t j = 0; j < m; ++j)
            cout << mas1[i][j] << " ";
        cout << endl;
    }

    for (size_t i = 0; i<n; i++)
        for (size_t j = 0; j < m; ++j)
            mas2[i] += mas1[i][j];

    for (size_t i = 0; i < n - 1; i++)
        for (size_t j = i + 1; j < n; j++)
            if (mas2[i]>mas2[j]) {
                swap(mas2[i], mas2[j]);
                swap(mas1[i], mas1[j]);
            }

    cout << endl << "Resultat:\n";
    for (size_t i = 0; i < n; ++i) {
        for (size_t j = 0; j < m; ++j)
            cout << mas1[i][j] << " ";
        cout << endl;
    }

    for (size_t i = 0; i < n; ++i)
        delete[]mas1[i];
    delete[]mas1;
    delete[]mas2;

    system("pause");
    return 0;
}