Count Set Bits in 32-Bit Integer | Dataford Interview Questions

How would you implement a bitwise function to count the number of set bits in a 32-bit integer? Implement count_set_bits(n), which accepts an unsigned 32-bit integer and returns the number of 1 bits in its binary representation. Use bitwise operations rather than converting the value to a string or using a library bit-counting function.

Constraints

0 <= n <= 2^32 - 1
Return the number of set bits in the 32-bit representation of n
Do not convert n to a string
Do not use a built-in bit-counting function

Function Signature

def count_set_bits(n):

Your question is Count Set Bits in 32-Bit Integer. 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.

Problem

Constraints

0 <= n <= 2^32 - 1
Return the number of set bits in the 32-bit representation of n
Do not convert n to a string
Do not use a built-in bit-counting function

Function Signature

def count_set_bits(n):

Your question is Count Set Bits in 32-Bit Integer. 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.