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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. 	{
  6. 		int m;
  7. 		cin>>m;
  8. 		int A[m][m], B[m][m], C[m][m], D[m][m];
  9. 		int X[m][m], Y[m][m];
  10. 		int el;
  11. 		for(int i=0;i<m;i++)
  12. 			for(int j=0;j<m;j++)
  13. 				cin>>A[i][j];
  14. 		for(int i=0;i<m;i++)
  15. 			for(int j=0;j<m;j++)
  16. 				cin>>B[i][j];
  17. 		for(int i=0;i<m;i++)
  18. 			for(int j=0;j<m;j++)
  19. 				cin>>C[i][j];
  20. 		for(int i=0;i<m;i++)
  21. 			for(int j=0;j<m;j++)
  22. 				cin>>D[i][j];
  23.  
  24. 		for(int i=0;i<m;i++)
  25. 			{
  26. 				for(int j=0;j<m;j++)
  27. 					{
  28. 						el=0;
  29. 						for(int l=0;l<m;l++)
  30. 							{
  31. 								el=el+A[i][l]*C[l][j]-B[i][l]*D[l][j];
  32. 							}
  33. 						X[i][j]=el;
  34. 					}
  35. 			}
  36. 		for(int i=0;i<m;i++)
  37. 			{
  38. 				for(int j=0;j<m;j++)
  39. 					{
  40. 						el=0;
  41. 						for(int l=0;l<m;l++)
  42. 							{
  43. 								el=el+A[i][l]*D[l][j]+B[i][l]*C[l][j];
  44. 							}
  45. 						Y[i][j]=el;
  46. 					}
  47. 			}
  48. 		cout<<"X:"<<endl;
  49. 		for(int i=0;i<m;i++)
  50. 			{
  51. 				for(int j=0;j<m;j++)
  52. 					{
  53. 						cout<<X[i][j]<<" ";
  54. 					}
  55. 				cout<<endl;
  56. 			}
  57. 		cout<<endl;
  58. 		cout<<"Y:"<<endl;
  59. 		for(int i=0;i<m;i++)
  60. 			{
  61. 				for(int j=0;j<m;j++)
  62. 					{
  63. 						cout<<Y[i][j]<<" ";
  64. 					}
  65. 				cout<<endl;
  66. 			}
  67. 		return 0;
  68. 	}
Success #stdin #stdout 0s 3144KB
comments (?)
stdin
copy 
3

9 5 4
8 5 2
6 1 3

1 4 6
5 3 1
9 8 7

4 2 8
3 9 5
1 2 7

5 6 7
4 1 9
3 8 2
stdout
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X:
16 13 70 
9 24 39 
-68 -91 -75 

Y:
99 141 186 
96 108 167 
110 165 218
https://ideone.com/aciriO
умножение комплексных матриц
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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