oracle3001 questions

• Use of std::optional to pass a std::vector<int> to a functional by reference
• C++ Inverse Kinematic Algorithm / library which includes method for IK when position of several nodes in chain known
• Efficient method for randomly selecting all elements of a std::vector exactly once WITHOUT reshuffling
• "is_assignable"error when using Boost 1.68 / LLVM / VS2017
• c++: Select a subset of a std::vector, based predefined element indices

oracle3001 answers