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Indexing of bitset variables starts from ___________

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Indexing of bitset variables starts from ___________

(a) leftmost bit

(b) rightmost bit

(c) same as in an array

(d) front

This question was addressed to me in an online interview.

Question is taken from Bitset topic in division Class Hierarchies, Library & Containers of C++

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Right option is (b) rightmost bit

The explanation: The indexing of bitset variable starts from rightmost bit i.e. if you have b = 1100 as your bitset then b[0] = 0, not 1.

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