Counting of set bits

#1

In python there is a function bin() which gives binary number in type string. Is there a function in c++ which can give me a binary number like python?

#2

what is _builtin_popcount time complexity?

#3

In C++, you can use bitset for this purpose.

https://stackoverflow.com/questions/22746429/c-decimal-to-binary-converting#:~:text=You%20can%20use%20std%3A%3A,(n).

#4

It must be O(no of set bits). So you can say constant time complexity. Maxm number of set bits can be 32(if integer)

#5

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