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  1. // Let's print out matrix one and matrix 2.
  2.  
  3. // Multiplication My Version
  4. #include <iostream>
  5.  
  6. using namespace std;
  7.  
  8. void print_matrix(int m[10][10], int s)
  9. /**
  10.  Print out a square matrix of size s, max size 10.
  11.  */
  12. {
  13.    for (int i = 0; i < s; ++i)
  14.    {
  15.       for (int j = 0; j < s; ++j) 
  16.       {
  17.          cout << m[i][j] << "\t";
  18.       }
  19.       cout << endl;
  20.    }
  21. }
  22.  
  23. int main()
  24. {
  25.    int m, n, c, d, o, p, first[10][10], second[10][10], mult[10][10];
  26.  
  27.    cout << "Enter the number of rows and columns of matrix 1 ";
  28.    cin >> m >> n;
  29.    cout << "Enter the number of rows and columns of matrix 2 ";
  30.    cin >> o >> p;
  31.  
  32.    cout << "Enter the elements of first matrix\n";
  33.  
  34.    for (  c = 0 ; c < m ; c++ ) 
  35.    {
  36.       for ( d = 0 ; d < n ; d++ ) 
  37.       {
  38.          cin >> first[c][d];
  39.       }
  40.    }
  41.  
  42.    cout << "Enter the elements of second matrix\n";
  43.  
  44.    for ( c = 0 ; c < o ;c++ ) 
  45.    {
  46.       for ( d = 0 ; d < p ; d++ ) 
  47.       {
  48.             cin >> second[c][d];
  49.       }
  50.     }
  51.     cout << "First Matrix:" << endl;
  52.     print_matrix(first, m);
  53.     cout << endl << "Second Matrix:" << endl;
  54.     print_matrix(second, o);
  55.    //mult
  56. /*
  57.    if(n==o)
  58.    {
  59.  
  60.        for ( c = 0 ; c < m ; c++ )
  61.        {
  62.      
  63.           for ( d = 0 ; d < p ; d++ )
  64.           {
  65.                 mult[c][d]=0;
  66.           
  67.               for(int k=0;k<n;k++)
  68.               {
  69.          
  70.                mult[c][d] += first[c][k] * second[k][d];
  71.               } 
  72.            }
  73.        }
  74.     }
  75.    else {
  76.        cout<<"Multiplication not possible";
  77.    }
  78.    cout << "Product of entered matrices:-\n";
  79.  
  80.    for ( c = 0 ; c < m ; c++ )
  81.    {
  82.       for ( d = 0 ; d < p ; d++ ) 
  83.     {
  84.          cout << mult[c][d] << "\t";
  85.     }
  86.  
  87.       cout << endl;
  88.    }
  89.  */
  90.    return 0;
  91. }
Success #stdin #stdout 0.02s 2728KB
comments (?)
stdin
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2
2
3
3
3
3
1
0
0
1
stdout
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Enter the number of rows and columns of matrix 1 Enter the number of rows and columns of matrix 2 Enter the elements of first matrix
Enter the elements of second matrix
First Matrix:
3	3	
1	0	

Second Matrix:
0	1	1011	
0	2273	-1219186208	
2090266759	-1073756048	-1216591463
https://ideone.com/mQNtH
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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