C# | How to get a subset in a SortedSet

SortedSet class represents the collection of objects in sorted order. This class comes under the System.Collections.Generic namespace. SortedSet<T>.GetViewBetween(T, T) method is used to return a view of a subset in a SortedSet<T>.

Properties:

• In C#, SortedSet class can be used to store, remove or view elements.
• It maintains ascending order and does not store duplicate elements.
• It is suggested to use SortedSet class if you have to store unique elements and maintain ascending order.

Syntax: public virtual System.Collections.Generic.SortedSet<T> GetViewBetween (T lowerValue, T upperValue);

Parameters:
lowerValue: The lowest desired value in the view.
upperValue: The highest desired value in the view.

Return Value: A subset view that contains only the values in the specified range.

Exceptions :

• ArgumentException: If lowerValue is more than upperValue according to the comparer.
• ArgumentOutOfRangeException: A tried operation on the view was outside the range specified by lowerValue and upperValue.

Example 1:

// C# code to get the subset of a SortedSet
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a SortedSet of strings
        SortedSet<string> mySet1 = new SortedSet<string>();

        // Inserting elements in SortedSet
        mySet1.Add("A");
        mySet1.Add("B");
        mySet1.Add("C");
        mySet1.Add("D");
        mySet1.Add("E");
        mySet1.Add("F");
        mySet1.Add("G");
        mySet1.Add("H");
        mySet1.Add("I");

        // Get the subset between "C" and "G"
        SortedSet<string> mySet2 = mySet1.GetViewBetween("C", "G");

        // Displaying the elements in the subset
        foreach(string str in mySet2)
        {
            Console.WriteLine(str);
        }
    }
}

Output:

C
D
E
F
G

Example 2:

// C# code to get the subset of a SortedSet
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a SortedSet of integers
        SortedSet<int> mySet1 = new SortedSet<int>();

        // Inserting elements in SortedSet
        for (int i = 0; i < 10; i++) {
            mySet1.Add(i);
        }

        // Get the subset between "3" and "7"
        SortedSet<int> mySet2 = mySet1.GetViewBetween(3, 7);

        // Displaying the elements in the subset
        foreach(int i in mySet2)
        {
            Console.WriteLine(i);
        }
    }
}

Output:

3
4
5
6
7

Reference:

• https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.sortedset-1.getviewbetween?view=netcore-2.1