Question

Which of the following is correct about bitset and vector of bools?

(a) Space consumed by bitset is less than vector<bool>

(b) Bitset consume only 1 bit per element

(c) Number of elements in bitset should be known at compile time whereas vector can have a dynamic size

(d) All of the mentioned

I have been asked this question in quiz.

The origin of the question is Bitset in section Class Hierarchies, Library & Containers of C++

Answer 1

The correct option is (d) All of the mentioned

Explanation: Bitset consumes less space compared to bool vector however the size for bitset is static whereas for bool vector size is dynamic.