<h3 id="heading-url">URL</h3>
<p><a href="https://leetcode.com/problems/swap-nodes-in-pairs/" class="autolinkedURL autolinkedURL-url" target="_blank">leetcode.com/problems/swap-nodes-in-pairs</a></p>
<h3 id="heading-code">Code</h3>
<p><a href="https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/0024/main.fsx" class="autolinkedURL autolinkedURL-url" target="_blank">github.com/syohex/dotnet-study/blob/master/..</a></p>
<pre><code class="lang-fsharp">type LinkedList =
    | Empty
    | ListNode of int * LinkedList

let rec swapPair (node: LinkedList) : LinkedList =
    match node with
    | Empty -&gt; Empty
    | ListNode (x, next) -&gt;
        match next with
        | Empty -&gt; node
        | ListNode (y, nnext) -&gt; ListNode(y, ListNode(x, (swapPair nnext)))
</code></pre>
<p>This problem is not suit for F#</p>


### URL

https://leetcode.com/problems/swap-nodes-in-pairs/

### Code

https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/0024/main.fsx

```fsharp
type LinkedList =
    | Empty
    | ListNode of int * LinkedList

let rec swapPair (node: LinkedList) : LinkedList =
    match node with
    | Empty -> Empty
    | ListNode (x, next) ->
        match next with
        | Empty -> node
        | ListNode (y, nnext) -> ListNode(y, ListNode(x, (swapPair nnext)))
```

This problem is not suit for F#

LeetCode 24. Swap Nodes in Pairs in F#

URL

Code