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  1. using System;
  2.  
  3. namespace ConsoleApplication1
  4. {
  5.     internal class Program
  6.     {
  7.         public static void Main(string[] args)
  8.         {
  9.             int[][] tab1 = new int[][]
  10.             {
  11.                 new int[] { 1, 1, 1, 1 },
  12.                 new int[] { 2, 2 },
  13.                 new int[] { 3, 3, 3, 3, 3, 3 }
  14.             };
  15.  
  16.             int[][] tab2 = new int[][]
  17.             {
  18.                 new int[] { 1, 2, 3 },
  19.             };
  20.  
  21.             int[][] tab3 = new int[][]
  22.             {
  23.                 new int[] { -1 },
  24.                 new int[] { 1 },
  25.                 new int[] { 1 },
  26.             };
  27.  
  28.             int[][] tab4 = new int[][]
  29.             {
  30.                 new int[] { 1, 1 },
  31.                 new int[] { 2, -1 },
  32.             };
  33.  
  34.             int[][] tab5 = new int[][]
  35.             {
  36.                 new int[] { -1, -2 },
  37.                 new int[] { -3, -4 },
  38.             };
  39.  
  40.             Console.Out.WriteLine("Wynik 1: " + Srednia(tab1).ToString("0.00"));
  41.             Console.Out.WriteLine("Wynik 2: " + Srednia(tab2).ToString("0.00"));
  42.             Console.Out.WriteLine("Wynik 3: " + Srednia(tab3).ToString("0.00"));
  43.             Console.Out.WriteLine("Wynik 4: " + Srednia(tab4).ToString("0.00"));
  44.             Console.Out.WriteLine("Wynik 5: " + Srednia(tab5).ToString("0.00"));
  45.         }
  46.  
  47.         public static double Srednia(int[][] tab)
  48.         {
  49.             if (tab == null || tab.Length == 0)
  50.             {
  51.                 return 0.0;
  52.             }
  53.  
  54.             double sum = 0;
  55.             int count = 0;
  56.  
  57.             foreach (int[] innerTab in tab)
  58.             {
  59.                 foreach (int x in innerTab)
  60.                 {
  61.                     if (x > 0)
  62.                     {
  63.                         count++;
  64.                         sum += x;
  65.                     }
  66.                 }
  67.             }
  68.  
  69.             if (count == 0)
  70.             {
  71.                 return 0.0;
  72.             }
  73.  
  74.             return Math.Round(sum / count, 2);
  75.         }
  76.     }
  77. }
Success #stdin #stdout 0.02s 25220KB
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stdin
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Standard input is empty
stdout
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Wynik 1: 2.17
Wynik 2: 2.00
Wynik 3: 1.00
Wynik 4: 1.33
Wynik 5: 0.00
https://ideone.com/uX4tAh
language:
C# (gmcs 5.20.1)
created:
2 years ago
visibility:
public

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