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  1. #include <ctime>
  2. #include <cstdlib>
  3. #include <iostream>
  4. using namespace std;
  5. int main()
  6. {
  7.     //setlocale(LC_ALL, "russian");
  8.     srand((time(0)));
  9.     int n;
  10.     cout << "введите размер массива: ";
  11.     cin >> n;
  12.     int** A = new int* [n];
  13.  
  14.     cout << endl;
  15.  
  16.     for (int i = 0; i < n; i++)
  17.     {
  18.         A[i] = new int[n];
  19.         for (int j = 0; j < n; j++) {
  20.             A[i][j] = rand() % 100;
  21.             cout << A[i][j] << " ";
  22.  
  23.         }
  24.         cout << endl;
  25.     }
  26.     cout << endl << endl;
  27.  
  28.     for (int i = 0; i < n-1; i+=2)
  29.     {
  30.         int * tmp = A[i];
  31.         A[i] = A[i+1];
  32.         A[i+1] = tmp;
  33.     }
  34.  
  35.     for (int i = 0; i < n; i++)
  36.     {
  37.         for (int j = 0; j < n; j++) {
  38.             cout << A[i][j] << " ";
  39.         }
  40.         cout << endl;
  41.     }
  42.  
  43.  
  44.     for (int i = 0; i < n; i++)
  45.     {
  46.         delete A[i];
  47.     }
  48.     delete[] A;
  49.     return 0;
  50. }
  51.  
Success #stdin #stdout 0s 4652KB
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stdin
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8
stdout
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введите размер массива: 
49 10 74 64 79 66 44 49 
55 31 3 50 16 84 63 83 
32 16 36 50 39 95 31 22 
34 70 94 7 15 57 18 16 
19 92 80 98 59 24 99 66 
55 55 16 23 39 80 7 71 
48 95 74 40 42 5 62 76 
28 56 35 43 65 54 59 85 


55 31 3 50 16 84 63 83 
49 10 74 64 79 66 44 49 
34 70 94 7 15 57 18 16 
32 16 36 50 39 95 31 22 
55 55 16 23 39 80 7 71 
19 92 80 98 59 24 99 66 
28 56 35 43 65 54 59 85 
48 95 74 40 42 5 62 76
https://ideone.com/dMHZrC
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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