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  1. using System;
  2. using System.Linq;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		int[] a = {1, 2, 3, 4, 5, 6};
  9. 		var res = a.Select((x, i) => new {x, i}).GroupBy(x => x.i >> 1, x=> x.x).Select(x => x.Sum());
  10. 		Console.WriteLine(string.Join(" ", res));
  11. 	}
  12. }
Success #stdin #stdout 0.05s 24032KB
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3 7 11
https://ideone.com/jJcaqy
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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