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

Created by @bmtran


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.


   in = 215
   out = 6 


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233 correct solutions 389 incorrect solutions
Last solution submitted on Dec 20, 2014

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