Number of 1 Bits
Detailed guide and Python implementation for the 'Number of 1 Bits' problem.
Problem Statement
Write a function that takes the binary representation of a positive integer and returns the number of set bits it has (also known as the Hamming weight).
Write a function hammingWeight(n: int) -> int.
- •n must be a positive integer up to 2^32 - 1
Examples
n = 11
3
The binary representation of 11 is 1011, which has 3 set bits.
n = 128
1
The binary representation of 128 is 10000000, which has 1 set bit.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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