<h2 id="heading-url">URL</h2>
<a target="_blank" href="https://leetcode.com/problems/number-of-1-bits/description/?envType=daily-question&amp;envId=2023-11-29">Number of 1 Bits - LeetCode</a>
<h2 id="heading-code">Code</h2>
<a target="_blank" href="https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202311/number_of_1bits/main.fsx">https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202311/number_of_1bits/main.fsx</a>
<pre><code class="lang-fsharp">let hammingWeight (n: uint32) : int =
 let rec hammingWeight' (n: uint32) acc =
 if n = 0u then
 int acc
 else
 hammingWeight' (n &gt;&gt;&gt; 1) (acc + (n &amp;&amp;&amp; 1u))

 hammingWeight' n 0u
</code></pre>

## URL

[Number of 1 Bits - LeetCode](https://leetcode.com/problems/number-of-1-bits/description/?envType=daily-question&envId=2023-11-29)

## Code

[https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202311/number\_of\_1bits/main.fsx](https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202311/number_of_1bits/main.fsx)

```fsharp
let hammingWeight (n: uint32) : int =
    let rec hammingWeight' (n: uint32) acc =
        if n = 0u then
            int acc
        else
            hammingWeight' (n >>> 1) (acc + (n &&& 1u))

    hammingWeight' n 0u
```

Leet Code 191. Number of 1 Bits in F#

URL

Code