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  1. using System;
  2. using System.Linq;
  3.  
  4. namespace laba2 {
  5.   class Program {
  6.     static void Main(string[] args) {
  7.       var n = Console.ReadLine();
  8.       var div3s = new[] {'0', '3', '6', '9'};
  9.       Console.WriteLine(n.ToCharArray().Count(x => div3s.Contains(x)));
  10.       Console.ReadKey();
  11.     }
  12.   }
  13. }
  14.  
Success #stdin #stdout 0.02s 23416KB
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4
https://ideone.com/k6tJ0t
language:
C# (gmcs 5.20.1)
created:
2 years ago
visibility:
public

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