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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void FillMatrix(int mat[501][501], short matOrder)
  5. {
  6. 	for (int i = 0; i < matOrder; i++)
  7. 	{
  8. 		for (int j = 0; j < matOrder; j++)
  9. 			cin >> mat[i][j];
  10. 	}
  11. }
  12.  
  13. void SwapRowsInMatrix(int mat[501][501], int MatOrder, int X, int Y)
  14. {
  15. 	X--;
  16. 	Y--;
  17.  
  18. 	if (X != Y)
  19. 	{
  20. 		for (int i = 0; i < MatOrder; i++)
  21. 		{
  22. 			int temp = mat[Y][i];
  23. 			mat[Y][i] = mat[X][i];
  24. 			mat[X][i] = temp;
  25. 		}
  26. 	}
  27. }
  28.  
  29. void SwapColsInMatrix(int mat[501][501], int MatOrder, int X, int Y)
  30. {
  31. 	X--;
  32. 	Y--;
  33.  
  34. 	if (X != Y)
  35. 	{
  36. 		for (int i = 0; i < MatOrder; i++)
  37. 		{
  38. 			int temp = mat[i][Y];
  39. 			mat[i][Y] = mat[i][X];
  40. 			mat[i][X] = temp;
  41. 		}
  42. 	}
  43. }
  44.  
  45. void PrintMatrix(int mat[501][501], short MatOrder)
  46. {
  47. 	for (int i = 0; i < MatOrder; i++)
  48. 	{
  49. 		for (int j = 0; j < MatOrder; j++)
  50. 			cout << mat[i][j] << " ";
  51.  
  52. 		cout << endl;
  53. 	}
  54.  
  55. }
  56.  
  57. int main()
  58. {
  59. 	int mat[501][501];
  60.  
  61. 	int MatOrder, X, Y;
  62.  
  63. 	cin >> MatOrder >> X >> Y;
  64.  
  65. 	FillMatrix(mat, MatOrder);
  66.  
  67. 	SwapRowsInMatrix(mat, MatOrder, X, Y);
  68.  
  69. 	SwapColsInMatrix(mat, MatOrder, X, Y);
  70.  
  71. 	PrintMatrix(mat, MatOrder);
  72.  
  73.  
  74. 	return 0;
  75. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
4 3 1
1 2 3 -5
-5 4 0 3
7 7 1 2
40 6 5 11
stdout 
1 7 7 2 
0 4 -5 3 
3 2 1 -5 
5 6 40 11
https://ideone.com/V6B77B
language:
C++ (gcc 8.3)
created:
15 days ago
visibility:
public

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