[LeetCode] 191. Number of 1 Bits

[LeetCode] 191. Number of 1 Bits

191. Number of 1 Bits Easy Write a function that takes an unsigned integer and returns the number of '1' bits it has (also known as the Hamming weight). Note: Note that in some languages, such as Java, there is no unsigned integer type. In this case, the input will be given as a signed integer type. It should not affect your implementation, as the integer's internal binary representation is the ..