Query regarding Fast LCA approach?

[savaliya_vivek]

Look at this ..

Intersecting Paths

Hi All, Could you please help me with the problem intersectingPath of JUNE Challenge?. I would request all the coders who have solved the above problem to suggest me the topic to study prior understanding it and request them to re-organize their code by adding comments, re-submit it and please share the submission if possible. It would be better to get to know about the particular way of dealing with graphs/dp. Thanks!!