<h2 id="heading-url">URL</h2>
<p><a href="https://leetcode.com/problems/is-subsequence/" class="autolinkedURL autolinkedURL-url" target="_blank">leetcode.com/problems/is-subsequence</a></p>
<h2 id="heading-code">Code</h2>
<p><a href="https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/0392/main.fsx" class="autolinkedURL autolinkedURL-url" target="_blank">github.com/syohex/dotnet-study/blob/master/..</a></p>
<pre><code class="lang-fsharp">let isSubsequence (s: string) (t: string) : bool =
    let rec isSubsequence' cs ct =
        match cs with
        | [] -&gt; true
        | x :: xs -&gt;
            match List.tryFindIndex ((=) x) ct with
            | Some (p) -&gt; isSubsequence' xs (ct |&gt; List.skip (p + 1))
            | None -&gt; false

    isSubsequence' (s |&gt; Seq.toList) (t |&gt; Seq.toList)
</code></pre>


## URL

https://leetcode.com/problems/is-subsequence/

## Code

https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/0392/main.fsx

```fsharp
let isSubsequence (s: string) (t: string) : bool =
    let rec isSubsequence' cs ct =
        match cs with
        | [] -> true
        | x :: xs ->
            match List.tryFindIndex ((=) x) ct with
            | Some (p) -> isSubsequence' xs (ct |> List.skip (p + 1))
            | None -> false

    isSubsequence' (s |> Seq.toList) (t |> Seq.toList)
```

LeetCode 392. Is Subsequence in F#

URL

Code