I had conducted a 3 day lecture series for DP on Trees at my youtube channel.
Playlist Link ► https://goo.gl/SjtNaK.
I have covered 3 types of techniques here:
- Easy DP ► Link to Video
- In Out DP ► Link to Video
- Binary Lifting | LCA | Applications ► Link to Video
Check out the Video Descriptions to find practise problems and other relevant information.