Write a program for multiplication of two matrices

Two matrices are taken from user..multiplication matrix is displayed as output.

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include<iostream.h>
2. #include<conio.h>
   
3. void main()
   
4. {
   
5. clrscr();
   
6. int a[10][10],b[10][10],c[10][10],m,n,o,p,i,j;
   
7. cout<<"Enter number of rows of A: ";
   
8. cin>>m;
   
9. cout<<"Enter number of coloumns of A: ";
   
10. cin>>n;
    
11. cout<<endl<<"Enter elements of matrix A: "<<endl;
    
12. //Coding by: Snehil Khanor
13. //http://WapCPP.blogspot.com
14. for(i=0;i<m;i++)
    
15. {
    
16. for(j=0;j<n;j++)
    
17. {
    
18. cout<<"Enter element a"<<i+1<<j+1<<": ";
    
19. cin>>a[i][j];
    
20. }
    
21. }
    
22. cout<<endl<<"Enter number of rows of B: ";
    
23. cin>>o;
    
24. cout<<"Enter number of coloumns of B: ";
    
25. cin>>p;
    
26. cout<<endl<<"Enter elements of matrix B: "<<endl;
    
27. for(i=0;i<o;i++)
    
28. {
    
29. for(j=0;j<p;j++)
    
30. {
    
31. cout<<"Enter element b"<<i+1<<j+1<<": ";
    
32. cin>>b[i][j];
    
33. }
    
34. }
    
35. 
    
36. cout<<endl<<"Displaying Matrix A: "<<endl<<endl;
    
37. for(i=0;i<m;i++)
    
38. {
    
39. for(j=0;j<n;j++)
    
40. {
    
41. cout<<a[i][j]<<" ";
    
42. }
    
43. cout<<endl<<endl;
    
44. }
    
45. cout<<endl<<"Displaying Matrix B: "<<endl<<endl;
    
46. for(i=0;i<o;i++)
    
47. {
    
48. for(j=0;j<p;j++)
    
49. {
    
50. cout<<b[i][j]<<" ";
    
51. }
    
52. cout<<endl<<endl;
    
53. }
    
54. if(n==o)
    
55. {
    
56. for(i=0;i<m;i++)
    
57. {
    
58. for(j=0;j<p;j++)
    
59. {
    
60. c[i][j]=0;
    
61. for(int k=0;k<n;k++)
    
62. {
    
63. c[i][j]=c[i][j]+a[i][k]*b[k][j];
    
64. }
    
65. }
    
66. }
    
67. cout<<endl<<"Matrix A * Matrix B = Matrix C: "<<endl<<endl;
    
68. for(i=0;i<m;i++)
    
69. {
    
70. for(j=0;j<p;j++)
    
71. {
    
72. cout<<c[i][j]<<" ";
    
73. }
    
74. cout<<endl<<endl;
    
75. }
    
76. }
    
77. else
    
78. cout<<"Multiplication not possible :(";
    
79. getch();
    
80. }