LeetCode 1249. Minimum Remove to Make Valid Parentheses in F#

URL https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses/description/?envType=daily-question&envId=2024-04-06 Code https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202404/minimum_remove_to_make_valid_pare...