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  1. using System;
  2.  
  3. namespace Test
  4. {
  5.     public class T
  6.     {
  7.         public static void MultiplyMatrix()
  8.         {
  9.             Random ran = new Random();
  10.             int[,] a = new int[4, 5];
  11.             // Инициализируем данный массив
  12.             for (int i = 0; i < a.GetLength(0); i++)
  13.             {
  14.                 for (int j = 0; j < a.GetLength(1); j++)
  15.                 {
  16.                     a[i, j] = ran.Next(1, 15);
  17.                 }
  18.             }
  19.             int[,] b = new int[5, 4];
  20.             // Инициализируем данный массив
  21.             for (int i = 0; i < b.GetLength(0); i++)
  22.             {
  23.                 for (int j = 0; j < b.GetLength(1); j++)
  24.                 {
  25.                     b[i, j] = ran.Next(1, 15);
  26.                 }
  27.             }
  28.  
  29.             int[,] c = new int[a.GetLength(0), b.GetLength(1)];
  30.             if (a.GetLength(1) == b.GetLength(0))
  31.             {
  32.  
  33.                 for (int i = 0; i < a.GetLength(0); i++)
  34.                 {
  35.                     for (int j = 0; j < b.GetLength(1); j++)
  36.                     {
  37.                         for (int k = 0; k < b.GetLength(0); k++)
  38.                         {
  39.                             c[i, j] += a[i, k] * b[k, j];
  40.                         }
  41.                     }
  42.                 }
  43.             }
  44.             else
  45.             {
  46.                 Console.WriteLine(
  47.                     "\n Number of columns in First Matrix should be equal to Number of rows in Second Matrix.");
  48.                 Console.WriteLine("\n Please re-enter correct dimensions.");
  49.                 Environment.Exit(-1);
  50.             }
  51.             for (int i = 0; i < c.GetLength(0); i++)
  52.             {
  53.                 for (int j = 0; j < c.GetLength(1); j++)
  54.                 {
  55.                     Console.Write("C[{0},{1}] : {2}", i, j, c[i, j]);
  56.                 }
  57.                 Console.WriteLine();
  58.             }
  59.         }
  60.  
  61.         public static void Main()
  62.         {
  63.             MultiplyMatrix();
  64.         }
  65.     }
  66. }
Success #stdin #stdout 0.04s 23944KB
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stdin
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Standard input is empty
stdout
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C[0,0] : 87C[0,1] : 42C[0,2] : 117C[0,3] : 61
C[1,0] : 240C[1,1] : 147C[1,2] : 380C[1,3] : 333
C[2,0] : 169C[2,1] : 137C[2,2] : 282C[2,3] : 218
C[3,0] : 127C[3,1] : 53C[3,2] : 174C[3,3] : 101
https://ideone.com/HWNWDm
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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