Question

How to add numbers to HashSet in C#

Answer 1

using System;
using System.Collections.Generic;

class Program
{
    static void Main() {
        HashSet<int> hs = new HashSet<int>();
        
        for (int i = 0; i < 5; i++) {
            hs.Add(i * 3);
        }
        
        foreach (int item in hs) {
            Console.Write("{0}{1}", item, " ");
        }
    }
}



/*
run:

0 3 6 9 12 

*/

 

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