Why Array Index starts from Zero

Answer Posted / chandan singh from niit

This boils down to the concept of Binary digits. Take an
array size of 64 for example. We start from 0 and end at
63. We require 6 bits.But, if we were to start from 1 and
end at 64, we would require 7 bits to store the same
number, thus increasing the storage size.

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