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  1. #include <iostream>
  2. #include <iomanip>
  3. #include <algorithm>
  4.  
  5.  const unsigned lineWidth = 80 ;
  6.  const unsigned columnWidth = 10 ;
  7.  const unsigned columns = lineWidth / columnWidth ;
  8.  
  9. void print( const int* t, unsigned size )
  10. { 
  11.     for ( unsigned i=0; i<size; ++i )
  12.     {
  13.         std::cout << std::setw(columnWidth) << t[i] ;
  14.  
  15.         if ( i > columns )
  16.             std::cout << '\n' ;
  17.     }
  18.  
  19.     std::cout << '\n' ;
  20. }
  21.  
  22. void print( const int* t, const unsigned* indices, unsigned size )
  23. { 
  24.     for ( unsigned i=0; i<size; ++i )
  25.     {
  26.         std::cout << std::setw(columnWidth) << t[indices[i]] ;
  27.  
  28.         if ( i > columns )
  29.             std::cout << '\n' ;
  30.     }
  31.  
  32.     std::cout << '\n' ;
  33. }
  34.  
  35. int main()
  36. {
  37.     const unsigned sz = 10 ;
  38.     int arr[sz] = {1, 5, 22, 14, 6, -5, 7, 9, 12, 15 } ;
  39.     unsigned arr_index[sz] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } ;
  40.  
  41.     print(arr, sz) ;
  42.     print(arr, arr_index, sz) ;
  43.     std::cout << '\n' ;
  44.  
  45.     std::sort(std::begin(arr_index), std::end(arr_index), [&](unsigned i, unsigned j){ return arr[i] < arr[j]; }) ;
  46.     print(arr, sz) ;
  47.     print(arr, arr_index, sz) ;
  48.     std::cout << '\n' ;
  49.  
  50.     std::sort(std::begin(arr_index), std::end(arr_index), [&](unsigned i, unsigned j){ return arr[j] < arr[i]; }) ;
  51.     print(arr,sz) ;
  52.     print(arr, arr_index, sz) ;
  53. }
Success #stdin #stdout 0s 2856KB
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stdin
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Standard input is empty
stdout
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         1         5        22        14         6        -5         7         9        12        15

         1         5        22        14         6        -5         7         9        12        15


         1         5        22        14         6        -5         7         9        12        15

        -5         1         5         6         7         9        12        14        15        22


         1         5        22        14         6        -5         7         9        12        15

        22        15        14        12         9         7         6         5         1        -5
https://ideone.com/sJb4bD
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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