Counting Ones in Binary | Dataford Interview Questions

Count how many 1's in a binary number.

Implement the function below for a non-negative integer. Return the number of set bits, without converting the number to a binary string.

Function signature: def count_ones(n):

Input is an integer n; output is an integer count.

def count_ones(n):

Your question is Counting Ones in Binary. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Count how many 1's in a binary number.

Implement the function below for a non-negative integer. Return the number of set bits, without converting the number to a binary string.

Function signature: def count_ones(n):

Input is an integer n; output is an integer count.

def count_ones(n):

Your question is Counting Ones in Binary. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.