Your question is Count Set Bits. Start with the requirements on the right.
Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.
Cyient embedded firmware often inspects status registers and diagnostic flags represented as unsigned integers. Given a non-negative 32-bit integer n, return the number of set bits, also called 1 bits, in its binary representation.
Use an efficient bit-manipulation approach. The function should count only the bits present in the supplied value and must not convert the integer to a string.
Implement count_set_bits(n), where:
n, a non-negative integer in the range 0 through 2^32 - 1.n.def count_set_bits(n):