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  1. #include <iostream>
  2. #include <string>
  3. #include <vector>
  4. #include <iterator>     // For std::ostream_iterator
  5. #include <algorithm>  // For std::copy
  6.  
  7. using namespace std;
  8.  
  9. class StringSet
  10. {
  11. public:
  12.   StringSet(vector<string> str);
  13.   void add(string s);
  14.   void remove(int i);
  15.   void clear();
  16.   int length();
  17.   void output(ostream& outs);
  18. private:
  19.   vector<string> strarr;
  20. };
  21.  
  22. StringSet::StringSet(vector<string> str)
  23. {
  24.   for(int k =0;k<str.size();k++)
  25.     {
  26.       strarr.push_back(str[k]);
  27.     }
  28. }
  29. void StringSet::add(string s)
  30. {
  31.   strarr.push_back(s);
  32. }
  33. void StringSet::remove(int i)
  34. {
  35.   strarr.erase (strarr.begin()+(i-1));
  36. }
  37. void StringSet::clear()
  38. {
  39.   strarr.erase(strarr.begin(),strarr.end());
  40. }
  41. int StringSet::length()
  42. {
  43.   return strarr.size();
  44. }
  45. void StringSet::output( ostream& outs )
  46. {
  47.   std::copy(strarr.begin(), strarr.end(), std::ostream_iterator<string>(outs, "\n"));
  48. }
  49.  
  50. int main()
  51. {
  52.   vector<string> vstr;
  53.   string s;
  54.   for(int i=0;i<3;i++)    // Changed the number of string to 3
  55.     {
  56.       cout<<"enter a string: ";
  57.       cin>>s;
  58.       vstr.push_back(s);
  59.     }
  60.   StringSet strset(vstr);
  61.   strset.length();
  62.   strset.add("hello");
  63.   strset.output( std::cout );   // Write on the standard output
  64.   strset.remove(3);
  65.   // strset.empty();   Does not exist
  66.   return 0;
  67. }
  68.  
Success #stdin #stdout 0s 3436KB
comments (?)
stdin
copy 
test1
test2
test3
stdout
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enter a string: enter a string: enter a string: test1
test2
test3
hello
https://ideone.com/TQsnry
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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