Question

How to find the missing values in a sorted range (x to y) list with C#

Answer 1

using System;
using System.Linq;
using System.Collections.Generic;

class FindMissingValuesInSortedRangeArray_CSharp
{
    static void Main()
    {
        int x = 4;
        int y = 15;

        List<int> lst = new List<int> { 5, 5, 5, 5, 6, 7, 9, 10, 10, 10, 11, 13 };

        HashSet<int> missingValues = new HashSet<int>(Enumerable.Range(x, y - x + 1).Except(lst));

        Console.WriteLine("missingValues: " + string.Join(", ", missingValues));
    }
}


/*
run:

missingValues: 4, 8, 12, 14, 15

*/

 

70+ SQL courses for beginners and professionals