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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class TEST
  6. {
  7.     public static void Main()
  8.     {
  9.         //検索元の配列
  10.         List<string> array = new List<string> { "red", "blue", "yellow", "pink", "green", "blue", "green", "blue", "red", "blue", "yellow" };
  11.  
  12.         List<string> sub1 = new List<string> { "blue", "yellow" }; //ある
  13.         List<string> sub2 = new List<string> { "blue", "green" }; //ある
  14.         List<string> sub3 = new List<string> { "blue", "hoge" }; //ない
  15.  
  16.         Console.WriteLine(string.Join(",", array.Any(sub1)));
  17.         Console.WriteLine(string.Join(",", array.Any(sub2)));
  18.         Console.WriteLine(string.Join(",", array.Any(sub3)));
  19.     }
  20. }
  21.  
  22. public static class IEnumerableExtensions
  23. {
  24.     public static IEnumerable<int> Any<T>(this IEnumerable<T> source, IEnumerable<T> target)
  25.     {
  26.         return source
  27.             .Select((v, i) => new
  28.             {
  29.                 v = source.Skip(i).Take(target.Count()),
  30.                 i = i
  31.             })
  32.             .Select(x => (x.v.SequenceEqual(target)) ? x.i : -1)
  33.             .Where(x => x >= 0);
  34.     }
  35. }
Success #stdin #stdout 0.06s 24144KB
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https://ideone.com/XMqJsQ
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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