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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. struct Codedtext
  7. {
  8.     string text;
  9.     Codedtext* next = nullptr;
  10. };
  11.  
  12. using CodedtextPtr = Codedtext*;
  13.  
  14. CodedtextPtr createCodeList()
  15. {
  16.     CodedtextPtr codeList = nullptr;
  17.     CodedtextPtr *node = &codeList;
  18.     string input;
  19.  
  20.     cout << "Enter your coded text: " << endl;
  21.     getline(cin, input);
  22.  
  23.     string::size_type start = 0, end;
  24.     while ((end = input.find("pe", start)) != string::npos)
  25.     {
  26.         *node = new Codedtext{ input.substr(start, end-start) };
  27.         node = &((*node)->next);
  28.  
  29.         *node = new Codedtext{ "pe" };
  30.         node = &((*node)->next);
  31.  
  32.         start = end + 2;
  33.     }
  34.     if (start < input.size())
  35.         *node = new Codedtext{ input.substr(start) };
  36.  
  37.     return codeList;
  38. }
  39.  
  40. void removeCodeWords(CodedtextPtr& codeList)
  41. {
  42.     CodedtextPtr* prev = &codeList;
  43.  
  44.     for(auto it = codeList; it != nullptr; )
  45.     {
  46.         CodedtextPtr next = it->next;
  47.  
  48.         if (it->text == "pe")
  49.         {
  50.         	*prev = next;
  51.             delete it;
  52.         }
  53.         else
  54.             prev = &(it->next);
  55.  
  56.         it = next;
  57.     }
  58. }
  59.  
  60. void printCodeList(CodedtextPtr codeList)
  61. {
  62.     while (codeList)
  63.     {
  64.         cout << codeList->text;
  65.         codeList = codeList->next;
  66.     }
  67.     cout << endl;
  68. }
  69.  
  70. void freeCodeList(CodedtextPtr codeList)
  71. {
  72.     while (codeList)
  73.     {
  74.         CodedtextPtr next = codeList->next;
  75.         delete codeList;
  76.         codeList = next;
  77.     }
  78. }
  79.  
  80. int main()
  81. {
  82.     CodedtextPtr codeList = createCodeList();
  83.     removeCodeWords(codeList);
  84.     printCodeList(codeList);
  85.     freeCodeList(codeList);
  86.     return 0;
  87. }
Success #stdin #stdout 0.01s 5460KB
comments (?)
stdin
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Hepello Ipe hapeve ape prpeobpelepem
stdout
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Enter your coded text: 
Hello I have a problem
https://ideone.com/HA9lG5
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
secret

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