<h2 id="heading-url">URL</h2>
<p><a target="_blank" href="https://leetcode.com/problems/sort-array-by-increasing-frequency/description/?envType=daily-question&amp;envId=2024-07-23">Sort Array by Increasing Frequency - LeetCode</a></p>
<h2 id="heading-code">Code</h2>
<p><a target="_blank" href="https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202407/sort_array_by_increasing_frequency/main.fsx">https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202407/sort_array_by_increasing_frequency/main.fsx</a></p>
<pre><code class="lang-fsharp"><span class="hljs-keyword">let</span> frequencySort (nums: int list) : int list =
    <span class="hljs-keyword">let</span> freq = nums |&gt; List.countBy id |&gt; Map.ofList

    nums
    |&gt; List.sortWith (<span class="hljs-keyword">fun</span> a b -&gt;
        <span class="hljs-keyword">match</span> Map.find a freq, Map.find b freq <span class="hljs-keyword">with</span>
        | x, y <span class="hljs-keyword">when</span> x = y -&gt; compare b a
        | x, y -&gt; compare x y)
</code></pre>


## URL

[Sort Array by Increasing Frequency - LeetCode](https://leetcode.com/problems/sort-array-by-increasing-frequency/description/?envType=daily-question&envId=2024-07-23)

## Code

[https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202407/sort\_array\_by\_increasing\_frequency/main.fsx](https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202407/sort_array_by_increasing_frequency/main.fsx)

```fsharp
let frequencySort (nums: int list) : int list =
    let freq = nums |> List.countBy id |> Map.ofList

    nums
    |> List.sortWith (fun a b ->
        match Map.find a freq, Map.find b freq with
        | x, y when x = y -> compare b a
        | x, y -> compare x y)
```

LeetCode 1636. Sort Array by Increasing Frequency in F#

URL

Code