C# Sharp Basic Algorithm Exercises: Create a new list from a given list of strings where each element has "#" added at the beginning and end position

C# Sharp Basic Algorithm: Exercise-143 with Solution

Write a C# Sharp program to create a new list from a given list of strings where each element has "#" added at the beginning and end position.

Pictorial Presentation:

Sample Solution:

C# Sharp Code:

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

namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {         
           List<string> mylist = test(new List<string>(new string[] { "1", "2", "3" , "4" }));                  
           foreach(var i in mylist)
            {
               Console.Write(i.ToString()+" ");
            }     
        }                  
        public static List<string> test(List<string> nums_str)
          {
            IEnumerable<string> s = nums_str.Select(x => "#" + x + "#");
            return s.ToList();
          }    
    } 
}

Sample Output:

#1# #2# #3# #4#

Flowchart:

C# Sharp Code Editor:

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