How to Solve Number of 1 Bits Problem
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Number of 1 Bits
Given a positive integer n, write a function that returns the number of set bits in its binary representation (also known as the Hamming weight).
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Understanding the Number of 1 Bits Problem
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Problem Statement
Given a positive integer n, write a function that returns the number of set bits in its binary representation (also known as the Hamming weight).
Number of 1 Bits
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Examples
n = 113The input binary string 1011 has a total of three set bits.
n = 1281The input binary string 10000000 has a total of one set bit.
n = 214748364530The input binary string 1111111111111111111111111111101 has a total of thirty set bits.
Constraints
1 <= n <= 231 - 1Follow up: If this function is called many times, how would you optimize it?How Interview Coder Helps with Leetcode Problems
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