Why can't we use cin>>v[i] for taking input

#1

Why we use v[i] just for showing output but not cin>>v[i] for taking input this point is not clear to me please explain, video reference(6:10)

#2

Hi divya
You can use v[i] when you have created a memory space in vector.
vectorv does not create a memory space and hence we use v.push_back(value) to create memory space and insert the value.
however
vectorv(n) creates a space for n values. We can use here v[i] for input also.
Hope it helps :slight_smile:

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#3

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