How to get difference between two array without using linq or Set oper

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• 

  Rajanikant Hawaldar4y agoPosted Aug 26, 2022, 2:12 PM

  Accepted answer

  1. namespace MSTestProject    
  2.  {    
  3.      [TestClass]    
  4.      public class UnitTest1    
  5.      {    
  6.          [TestMethod]  
  7.          public void Test()  
  8.          {  
  9.              var list = GetListDifference();  
  10.              foreach (var item in list)    
  11.              {    
  12.                  Console.WriteLine(item);    
  13.              }    
  14.          }  
  15.     
  16.          public List<string> GetListDifference()    
  17.          {    
  18.              var list1 = new List<string> { "Watermelon", "Apple", "Mango", "Guava", "Banana" };    
  19.              var list2 = new List<string> { "Orange", "Kiwi", "Apple", "Watermelon" };    
  20.         
  21.              var elements = new List<string>();    
  22.         
  23.              foreach (var item1 in list1)    
  24.              {    
  25.                  foreach (var item2 in list2)    
  26.                  {    
  27.                      if (item1 == item2)    
  28.                      {    
  29.                          elements.Add(item1);    
  30.                      }    
  31.                  }    
  32.              }    
  33.         
  34.              if (elements.Count > 0)    
  35.              {    
  36.                  foreach (var item in elements)    
  37.                  {    
  38.                      list1.Remove(item);    
  39.                      list2.Remove(item);    
  40.                  }    
  41.              }    
  42.         
  43.              var result = new List<string>();    
  44.              result.AddRange(list1);   
  45.              result.AddRange(list2);   
  46.              return result;  
  47.          }    
  48.      }    
  49.  }  
• 

  Vishal Yelve4y agoPosted Jul 25, 2022, 1:49 PM

  1. var list1 = new List<string> { "Watermelon", "Apple", "Mango", "Guava", "Banana" };  
  2.             var list2 = new List<string> { "Orange", "Kiwi", "Apple", "Watermelon" };  
  3.   
  4.             var elements = new List<string>();  
  5.   
  6.             foreach (var item1 in list1)  
  7.             {  
  8.                 foreach (var item2 in list2)  
  9.                 {  
  10.                     if (item1 == item2)  
  11.                     {  
  12.                         elements.Add(item1);  
  13.                     }  
  14.                 }  
  15.             }  
  16.   
  17.             if (elements.Count > 0)  
  18.             {  
  19.                 foreach (var item in elements)  
  20.                 {  
  21.                     list1.Remove(item);  
  22.                     list2.Remove(item);  
  23.                 }  
  24.             }  
  25.   
  26.             var result = new List<string>();  
  27.             result.AddRange(list1);  
  28.             result.AddRange(list2);  
  29.             return result;  
• 

  Amit Mohanty4y agoPosted Jul 25, 2022, 10:41 AM

  Try this
  

  1. public static void GetDiffValue(string[] array1, string[] array2)  
  2. {  
  3.     for (int i = 0; i < array1.Length; i++)  
  4.     {  
  5.         bool valueFound = false;  
  6.         for (int j = 0; j < array2.Length; j++)  
  7.         {  
  8.             if (array1[i] == array2[j])  
  9.                 valueFound = true;  
  10.         }  
  11.         if (!valueFound)  
  12.             Console.WriteLine(array1[i]);  
  13.     }  
  14. }  
  15.   
  16. static void Main(string[] args)  
  17. {  
  18.     var array1 = new[] { "A", "B", "C" };  
  19.     var array2 = new[] { "A", "C", "D" };  
  20.     GetDiffValue(array1, array2);  
  21.     GetDiffValue(array2, array1);  
  22. } 
      
• AS

  ahmed salah4y agoPosted Jul 25, 2022, 10:20 AM

  thank you for reply

  this is correct result

  but this solution with linq 

  i don't need solution with linq or set

  i need it with any solution without linq or set operator 
• 

  Amit Mohanty4y agoPosted Jul 25, 2022, 10:17 AM

  Try this
  

  1. var array1 = new[] { "A", "B", "C" };  
  2. var array2 = new[] { "A", "C", "D" };  
  3.   
  4. var result = array2.Except(array1).Concat(array1.Except(array2));