Union-Find using arrays

[@vasubansal5834]

I have a doubt. At 6:23 the union(k, k') is if component[i] ==k then update component[i] = k'.
This works, but I also tried if component[i]==k' then update component[i]=k which didn't work. Why is this so?

[@mdiftekhar8407]

self understandable

[@TheAnalysis2]

I think it's 2^m not 2m.

[@good.fornthng]

It's 2m consider the example in the video

[@sagnikacharyya5777]

bad explanation .