I never understand why we did v.size( )-1 for travesrsing whole vector it is not string why we do that

#1

i never understand why we did v.size( )-1 for travesrsing whole vector it is not string why we do that

#2

@Aditya-Kushwaha-914550392281281 index starts from 0, so for eg if size = 4
then the indices would be 0,1,2,3. notice here that the last index is size-1. It is just like arrays.

#3

but when we perform d. insert (d.begin() +3,100) then it will perform like 1 2 3 100 4 5 this shows itv runs from i=1

#5

@Aditya-Kushwaha-914550392281281 in the example that you gave,
100 is at the 3rd index, you gave that address in the iterator. This again shows that indexing starts from 0.

#6

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