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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. string removeDup(string s)
  8. {
  9.    if (s.length() == 0)
  10.    {
  11.        return "";
  12.    }
  13.  
  14.    size_t index = 0;
  15.    string::iterator end = s.end();
  16.  
  17.    while (index < s.size()) {
  18.        end = remove(s.begin()+index+1, end, s[index]);
  19.        ++index;
  20.    } 
  21.  
  22.    s.erase(end, s.end());
  23.    return s;
  24. }
  25.  
  26. int main()
  27. {
  28.    cout << removeDup("allcbbcd") << endl;
  29.  
  30.    return 0;
  31. }
Success #stdin #stdout 0s 5656KB
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stdin
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Standard input is empty
stdout
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alcbd
https://ideone.com/DZtZRy
language:
C++ 4.3.2 (gcc-4.3.2)
created:
3 years ago
visibility:
public

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