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  1. #include <iostream>
  2. #include <iomanip>
  3. #include <map>
  4. #include <set>
  5. #include <cmath>
  6. #include <vector>
  7. #include <climits>
  8. #include <string>
  9. #include <algorithm>
  10. #include <sstream>
  11. using namespace std;
  12.  
  13. vector<string> split(string haystack, string needle) {
  14.     vector<string> result;
  15.     int startPos = 0;
  16.     int foundPos = haystack.find(needle, startPos);
  17.     while (foundPos != string::npos) {
  18.         int count = foundPos - startPos;
  19.         string token = haystack.substr(startPos, count);
  20.         if (!token.empty()) {
  21.             result.push_back(token);
  22.         }
  23.         startPos = foundPos + needle.length();
  24.         foundPos = haystack.find(needle, startPos);
  25.     }
  26.     string token = haystack.substr(startPos, haystack.length() - startPos);
  27.     if (!token.empty()) {
  28.         result.push_back(token);
  29.     }
  30.     return result;
  31. }
  32.  
  33. int main() {
  34.     ios_base::sync_with_stdio(false);
  35.     cin.tie(NULL);
  36.     string s;getline(cin, s);
  37.  
  38.     vector<string> parts = split(s, " ");
  39.     set<string> word{ parts.begin(),parts.end() };
  40.  
  41.     for (auto value : word) {
  42.         cout << value << " ";
  43.     }
  44.  
  45.     set<string> seens;
  46.     for (string word : parts) {
  47.         if (seens.find(word) == seens.end()) {
  48.             cout << word << " ";
  49.             seens.insert(word);
  50.         }
  51.     }
  52.     return 0;
  53. }
  54.  
  55.  
Success #stdin #stdout 0s 5312KB
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https://ideone.com/GsNhwB
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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