11: Hamming weight
Write a method that counts the number of 1
in binary representation uinit
value
Example 1
Input: 3
Output: 2
Explanation:
3
has two1
bits (00000000 00000000 00000000 00000011
)
Example 2
Input: 10
Output: 2
Explanation:
10
has two1
bits (00000000 00000000 00000000 00001010
)