Randomised quick sort

#1

I am unable to understand why prateek bhaiya took mod of i+1 with the rand function rather he should have taken i-1 because here we are trying to generate an index below i to swap the numbers.

#2

hey @ashish_meher, go through the video once again, Prateek Bhaiya has explained the use of i+1 at 15.25.

#3

hey @ashish_meher , if no further query,please mark this doubt as resolved.

#4

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