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C# | Check if a SortedSet object is a proper subset of the specified collection
  • Last Updated : 03 Jul, 2019

SortedSet class represents the collection of objects in sorted order. This class comes under the System.Collections.Generic namespace. SortedSet<T>.IsProperSubsetOf(IEnumerable<T>) method is used to check if a SortedSet<T> object is a proper subset of the specified collection or not.

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:

mySet1.IsProperSubsetOf(mySet2);

Here, mySet1 and mySet2 are the objects of two SortedSets.

Return Value: This method return True if the SortedSet<T> object is a proper subset of other, otherwise False.



Below programs illustrate the use of SortedSet<T>.IsProperSubsetOf(IEnumerable<T>) method:

Example 1:




// C# code to Check if a SortedSet is a
// proper subset of the specified collection
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);
        }
  
        // Creating a SortedSet of integers
        SortedSet<int> mySet2 = new SortedSet<int>();
  
        // Inserting elements in SortedSet
        mySet2.Add(3);
        mySet2.Add(4);
        mySet2.Add(5);
        mySet2.Add(6);
  
        // Check if a SortedSet is a proper subset
        // of the specified collection
        // It should return true as SortedSet mySet2
        // is a proper subset of SortedSet mySet1
        Console.WriteLine(mySet2.IsProperSubsetOf(mySet1));
    }
}
Output:
True

Example 2:




// C# code to Check if a SortedSet is a
// proper subset of the specified collection
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");
  
        // Creating a SortedSet of strings
        SortedSet<string> mySet2 = new SortedSet<string>();
  
        // Inserting elements in SortedSet
        mySet2.Add("B");
        mySet2.Add("C");
        mySet2.Add("D");
        mySet2.Add("E");
  
        // Check if a SortedSet is a proper subset
        // of the specified collection
        // It should return true as SortedSet mySet1
        // is proper subset of SortedSet mySet2
        Console.WriteLine(mySet2.IsProperSubsetOf(mySet1));
    }
}
Output:
True

Reference:




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