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  1. #include <iostream>
  2. #define print_matrix \
  3. {\
  4. 	for(int i = 0; i < N; ++i){\
  5. 		for(int j = 0; j < M; ++j)\
  6. 			std::cout << m[i][j] << ' ';\
  7. 		std::cout << std::endl;\
  8. 	}\
  9. 	std::cout << std::endl;\
  10. }
  11.  
  12.  
  13. int main(void){
  14. 	const int N = 4;
  15. 	const int M = 5;
  16.  
  17. 	int m[N][M] = {
  18. 		{ 1, 1, 1, 1, 0 },
  19. 		{ 2, 2, 2, 2, 0 },
  20. 		{ 3, 3, 3, 3, 0 },
  21. 		{ 1, 2, 3, 4, 0 }
  22. 	};
  23. 	print_matrix;
  24.  
  25. 	int n = 2; 
  26.  
  27. 	//сдвиг вправо
  28. 	int* p, t;
  29. 	for(p = &m[0][0]; p != &m[N - 1][M]; p += M){
  30. 		for(int i = 0; i < n; ++i){
  31. 			t = *(p + (M - 1));
  32. 			for(int* r = p + (M - 1); r > p; --r)
  33. 				*r = *(r - 1);
  34. 			*p = t;
  35. 		}
  36. 	}
  37. 	print_matrix;
  38.  
  39. 	//сдвиг вниз
  40. 	int* e = &m[N - 1][0];
  41. 	for(p = &m[0][0]; p != &m[0][M]; ++p, ++e){
  42. 		for(int i = 0; i < n; ++i){
  43. 			t = *e;
  44. 			for(int* r = e; r > p; r -= M)
  45. 				*r = *(r - M);
  46. 			*p = t;
  47. 		}
  48. 	}
  49. 	print_matrix;
  50. 	return 0;
  51. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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1 1 1 1 0 
2 2 2 2 0 
3 3 3 3 0 
1 2 3 4 0 

1 0 1 1 1 
2 0 2 2 2 
3 0 3 3 3 
4 0 1 2 3 

3 0 3 3 3 
4 0 1 2 3 
1 0 1 1 1 
2 0 2 2 2
https://ideone.com/7lwDVS
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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