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  1.  using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Demo
  6. {
  7.     public static void Main()
  8.     {
  9.         int count = 100000;
  10.         long s;
  11.         s = DateTime.Now.Ticks;
  12.         for(int x=0; x<count; x++)
  13.             Test1();
  14.         Console.WriteLine( (DateTime.Now.Ticks-s).ToString() );
  15.         s = DateTime.Now.Ticks;
  16.         for(int x=0; x<count; x++)
  17.             Test2();
  18.         Console.WriteLine( (DateTime.Now.Ticks-s).ToString() );
  19.     }
  20.     public static List<List<int>> Test1()
  21.     {
  22.         var list1 = new List<int>{1,2,3,4,5};
  23.         var list2 = new List<int>{2,3};
  24.         var list3 = new List<int>{3,2};
  25.         var result = new List<List<int>>();
  26.         list1.Sort();
  27.         list2.Sort();
  28.         list3.Sort();
  29.         if(!result.Any(elm => elm.SequenceEqual(list1)))
  30.             result.Add(list1);
  31.         if(!result.Any(elm => elm.SequenceEqual(list2)))
  32.             result.Add(list2);
  33.         if(!result.Any(elm => elm.SequenceEqual(list3)))
  34.             result.Add(list3);
  35.         return result;
  36.     }
  37.     public static List<HashSet<int>> Test2()
  38.     {
  39.         var list1 = new List<int>{1,2,3,4,5};
  40.         var list2 = new List<int>{2,3};
  41.         var list3 = new List<int>{3,2};
  42.         var result = new List<HashSet<int>>();
  43.         result.Add(new HashSet<int>(list1));
  44.         result.Add(new HashSet<int>(list2));
  45.         result.Add(new HashSet<int>(list3));
  46.         result = result.Distinct(HashSet<int>.CreateSetComparer()).ToList();
  47.         return result;
  48.     }
  49. }
Success #stdin #stdout 1.17s 34968KB
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https://ideone.com/gDBrrS
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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