This sounds like what next_permutation does in the C++ STL. https://en.cppreference.com/w/cpp/algorithm/next_permutation https://en.cppreference.com/w/cpp/algor

This sounds like what next_permutation does in the C++ STL. https://en.cppreference.com/w/cpp/algorithm/next_permutation https://en.cppreference.com/w/cpp/algorithm/next_permutation