Dmitry Yashunin

Added a new method to replace a deleted element when a new one is added: `labeltype insertPoint(const void* data_point, labeltype label)` The method is the same as `addPoint` but allows...

Repair graph method

1

Sometimes we can get 0 in-degree nodes after updates. This adds a new method to find 0 in-degree nodes and add new connections to them.