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  1. using System;
  2. using System.Linq;
  3. using System.Collections.Generic;
  4.  
  5. public class Test
  6. {
  7.     public class Person
  8.         {
  9.             public string FirstName { get; set; }
  10.             public string LastName { get; set; }
  11.             public DateTime Birthday { get; set; }
  12.         }
  13.  
  14. 	public static void Main()
  15. 	{
  16. 		var persons = new List<Person>();
  17.             persons.Add(new Person() { FirstName="Barack", LastName="Obama"});
  18.             persons.Add(new Person() { FirstName = "Barack", LastName = "Obama" });
  19.             persons.Add(new Person() { FirstName = "Tim", LastName = "Schmelter" });
  20.  
  21.             var uniquePersons = persons
  22.                     .GroupBy(p => new { p.FirstName, p.LastName })
  23.                     .Where(g => g.Count() == 1)
  24.                     .Select(g => g.First());
  25.  
  26.             foreach(var pers in uniquePersons)
  27.                 Console.WriteLine("{0} {1}",pers.FirstName,pers.LastName);
  28. 	}
  29. }
Success #stdin #stdout 0.05s 37256KB
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Standard input is empty
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Tim Schmelter
https://ideone.com/nsbyyI
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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