<h2 id="heading-url">URL</h2>
<p><a target="_blank" href="https://leetcode.com/problems/subsets/description/?envType=daily-question&amp;envId=2024-05-21">https://leetcode.com/problems/subsets/description/?envType=daily-question&amp;envId=2024-05-21</a></p>
<h2 id="heading-code">Code</h2>
<p><a target="_blank" href="https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/challenge/202405/subsets/main.fsx">https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/challenge/202405/subsets/main.fsx</a></p>
<pre><code class="lang-fsharp"><span class="hljs-keyword">let</span> subsets (nums: int list) : int list list =
    <span class="hljs-keyword">let</span> <span class="hljs-keyword">rec</span> subsets' nums acc =
        <span class="hljs-keyword">match</span> nums <span class="hljs-keyword">with</span>
        | [] -&gt; acc |&gt; List.rev
        | h :: t -&gt;
            <span class="hljs-keyword">let</span> acc' = acc |&gt; List.fold (<span class="hljs-keyword">fun</span> acc' v -&gt; (v @ [ h ]) :: acc') acc
            subsets' t acc'

    subsets' nums [ [] ]
</code></pre>


## URL

[https://leetcode.com/problems/subsets/description/?envType=daily-question&envId=2024-05-21](https://leetcode.com/problems/subsets/description/?envType=daily-question&envId=2024-05-21)

## Code

[https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/challenge/202405/subsets/main.fsx](https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/challenge/202405/subsets/main.fsx)

```fsharp
let subsets (nums: int list) : int list list =
    let rec subsets' nums acc =
        match nums with
        | [] -> acc |> List.rev
        | h :: t ->
            let acc' = acc |> List.fold (fun acc' v -> (v @ [ h ]) :: acc') acc
            subsets' t acc'

    subsets' nums [ [] ]
```

LeetCode 78. Subsets in F#

URL

Code