Zero based indexing

#1

Can u pls explain me clearly why 0-based indexing in been used here???

#2

hello @soumakpoddar55

In the video the implementation of dsu is for 0 based indexing. but the edges we are given is 1 based indexing. so to use dsu implementation he has converted edges to 0 based indexing by subtrating 1 from x and y.

if u have implemented dsu for 1 based indexing then no need to subtract 1 from x and y.