a5, C# - rextester

a5

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            int[] firstt ={1};
            int[] secondd ={1};
          int[] a5(int[] first , int[] second)
          {
              
              int[] sav =new int[2];
              int y=0;
              if(first == null ||second == null ||first.Length<0 || second.Length<0) 
              {
                  return null;
              }
              else
              {
              for(int i=0;i<first.Length;i++)
              {
                  
              for(int o=0;o<second.Length;o++)
              {
                  if(first[i]==second[o])
                  {
                       sav[y]=second[o];
                          y++;
                      
                    
                  }
              }
              }
              }
              return sav;
          }
            int[] tess=a5(firstt, secondd);
            
            Console.WriteLine(tess[1]);

}
    }
}


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