Number of 1 Bits
Examples
Example 1:
Input: n = 00000000000000000000000000010111
Output: 4
Example 2:
Input: n = 01111111111111111111111111111101
Output: 30
Bit Manipulation
Example 1:
Input: n = 00000000000000000000000000010111
Output: 4
Example 2:
Input: n = 01111111111111111111111111111101
Output: 30
You are given an unsigned integer n. Return the number of 1 bits in its binary representation.
You may assume n is a non-negative integer which fits within 32-bits.