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  1.  
  2. #include <functional>
  3. #include <iostream>
  4.  
  5. bool isVowel(unsigned char x)
  6. {
  7.     static char vowelTest[] = {
  8.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  9.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  10.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  11.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  12.                 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
  13.                 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  14.                 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1,
  15.                 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  16.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  17.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  18.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  19.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  20.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  21.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  22.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  23.                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
  24.  
  25.     return vowelTest[x];
  26. }
  27. bool isConst(unsigned char x)
  28. {
  29.     return !isVowel(x);
  30. }
  31. char* findNext(char* data, std::function<bool(unsigned char)> test)
  32. {
  33.     while(!test(*data))
  34.     {   ++data;
  35.     }
  36.     return data;
  37. }
  38. void rearange(char* str)
  39. {
  40.     char*   data[2]     = { findNext(str, isConst), findNext(str, isVowel)};
  41.     bool    vowelNow    = false;
  42.  
  43.     while(*str)
  44.     {
  45.         if (data[vowelNow] == str)
  46.         {
  47.             data[vowelNow]       = findNext(data[vowelNow]+1, isVowel);
  48.         }
  49.         else
  50.         {
  51.             std::swap(*data[0], *data[1]);
  52.             data[0]     = findNext(data[0]+1, isConst);
  53.             data[1]     = findNext(data[1]+1, isVowel);
  54.         }
  55.         ++str;
  56.         vowelNow    = !vowelNow;
  57.     }
  58. }
  59.  
  60. int main()
  61. {
  62.     char val[] = "abed";
  63.     std::cout << val << "\n";
  64.     rearange(val);
  65.     std::cout << val << "\n";
  66. }
  67.  
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
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Standard input is empty
stdout
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abed
bade
https://ideone.com/AouDPU
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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