Problem 138. Number of 1s in the Binary Representation of a Number

Description

Return the number of 1s in the (unsigned integer) binary representation of a number. This function should be able to provide vectorized input and return an output with the same dimensions as the input.

Example

   in = 215
   out = 6
Solve

Solution Stats

30.73% Correct | 69.27% Incorrect
Last Solution submitted on Dec 14, 2025

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base binary count

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