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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Test
  6. {
  7.     class Data
  8.     {
  9.         public char Key;
  10.         public int Value;
  11.         public bool Flag;
  12.     }
  13.  
  14. 	public static void Main()
  15. 	{
  16.         var list = new List<Data>(){
  17.             new Data(){Key='a',Value=2,Flag=true},
  18.             new Data(){Key='b',Value=3,Flag=true},
  19.             new Data(){Key='c',Value=9,Flag=true},
  20.             new Data(){Key='d',Value=11,Flag=false},
  21.             new Data(){Key='e',Value=9,Flag=true}
  22.         };
  23.  
  24.         var flaggedList = list.Where(data=>data.Flag);
  25.         var maxValue = flaggedList.Max(data=>data.Value);
  26.         var mavValueOwnerList = flaggedList.Where(data => data.Value == maxValue);
  27.         var mavValueOwnerKeyList = mavValueOwnerList.Select(data=>data.Key);
  28.  
  29.         Console.WriteLine(string.Join("\n", mavValueOwnerKeyList));
  30. 	}
  31. }
Success #stdin #stdout 0.04s 15956KB
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stdin 
Standard input is empty
stdout 
c
e
https://ideone.com/RfUhMp
language:
C# (gmcs 5.20.1)
created:
6 years ago
visibility:
public

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