Please explain why are you adding the ans

#1

Please explain why are you adding the ans

#2

@sahazeer123 because as you can see in the video, it is calculated for every i, since we need the count of all the pairs thats why we are using it.

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#3

Please provide some list problems solved using union find data structure

#4

@sahazeer123 Apply dsu tag on codeforces or disjoint-set tag on spoj, you will have a list of questions you can do, sort them according to difficulty or acceptance rate.

#5

@sahazeer123 Also mark the doubts as resolved if your doubt is clear now.

#6

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