LeetCode 1663. Smallest String With A Given Numeric Value in F#

URL https://leetcode.com/problems/smallest-string-with-a-given-numeric-value/ Code https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/1663/main.fsx let getSmallestString (n: int) (k: int) : string = let rec getSmallestStr...