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  1. #include <iostream>
  2. #include <iomanip>
  3.  
  4. using namespace std;
  5.  
  6. int main(int argc, char * argv[])
  7. {
  8.     int a[3][3] = { 1,2,3,4,5,6,7,8,9};
  9.     for(int i = 0; i < 3; ++i)
  10.     {
  11.         for(int j = 0; j < 3; ++j)
  12.             cout << a[i][j] << "  ";
  13.         cout << endl;
  14.     }
  15.  
  16.     for(int i = 0; i < 3; ++i)
  17.     for(int j = i+1; j < 3; ++j)
  18.     {
  19.         int tmp = a[i][j];
  20.         a[i][j] = a[j][i];
  21.         a[j][i] = tmp;
  22.     }
  23.  
  24.     cout << "\n\n";
  25.     for(int i = 0; i < 3; ++i)
  26.     {
  27.         for(int j = 0; j < 3; ++j)
  28.             cout << a[i][j] << "  ";
  29.         cout << endl;
  30.     }
  31.  
  32. }
  33.  
Success #stdin #stdout 0.01s 5420KB
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stdin
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Standard input is empty
stdout
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1  2  3  
4  5  6  
7  8  9  


1  4  7  
2  5  8  
3  6  9
https://ideone.com/ppdC9c
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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