LeetCode 1832. Check if the Sentence Is Pangram in F#

URL https://leetcode.com/problems/check-if-the-sentence-is-pangram/ Code https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/1832/main.fsx let checkIfPangram (sentence: string) : bool = (sentence |> Seq.fold (fun acc ...