void istok_stok(vector<vector<int>>& ms, const int countNode, vector<int>& istok, vector<int>& stok)
{
istok.clear();
stok.clear();
for (int i = 0; i < countNode; i++)
{
bool success = true;
for (int j = 0; j < countNode && success; j++)
if (ms[i][j] != 0)
success = false;
if (success)
stok.push_back(i);
}
for (int i = 0; i < countNode; i++)
{
bool success = true;
for (int j = 0; j < countNode && success; j++)
if (ms[j][i] != 0)
success = false;
if (success)
istok.push_back(i);
}
}