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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <iomanip>
  4. using namespace std;
  5. const int M = 10;
  6. void fun(double a[][M])
  7. {	for (int i = 0; i < M / 2; ++i)
  8. 	{		for (int j = 0; j < M; j++)
  9. 		{			swap(a[i][j], a[M - i - 1][j]);
  10. 		}
  11. 	}
  12. }
  13.  
  14. void gauss(double a[][M], int r, int c) {
  15. 	for (int i; i < min(r, c) - 1; i++) {
  16. 		for (int j = i + 1; j < r; j++) {
  17. 			if (a[i][i] == 0) fun(a);
  18. 			for (int l = 0; l < c; l++) {
  19. 				a[j][l] -= a[i][l] / a[i][i]* a[j][i] ;
  20. 			}
  21. 		}
  22. 	}
  23. }
  24. int main()
  25. {
  26. 	double a[M][M];
  27. 	int r, c;
  28. 	cin >> r;//строки
  29. 	cin >> c;//столбцы 
  30.  
  31. 	for (int i = 0; i < r; i++)
  32. 	{
  33. 		for (int j = 0; j < c; j++)
  34. 		{
  35. 			cin >> a[i][j];
  36. 		}
  37. 	}
  38. 	gauss(a, r, c);
  39.  
  40. 	cout << "Матрица Гаусcа" << endl;
  41. 	for (int i = 0; i < r; i++)
  42. 	{
  43. 		for (int j = 0; j < c; j++)
  44. 			cout << setw(10) << a[i][j];
  45. 		cout << endl;
  46. 	}
  47. 	return 0;
  48. }
  49.  
  50.  
Success #stdin #stdout 0s 4336KB
comments (?)
stdin
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3
3
10
2
5
-7
4
3
6
7
3
stdout
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Матрица Гаусcа
        10         2         5
         0         4         3
         0         0         3
https://ideone.com/NXZL5D
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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