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  1. #include <iostream>
  2. #include <vector>
  3. #include <map>
  4. #include <string>
  5. #include <algorithm>
  6. #include <set>
  7. using namespace std;
  8.  
  9. vector<pair<string,string>> KeySort(map<string,string> s, const vector<string>& order){
  10.     vector<pair<string,string>> res;
  11.     for (const auto& it : order) {
  12.         auto needle = s.find(it);
  13.         if(needle != s.end()){
  14.             res.emplace_back(move(*needle));
  15.             s.erase(needle);
  16.         }
  17.     }
  18.     for (auto&& it : s) res.emplace_back(move(it));
  19.     return res;
  20. }
  21.  
  22. int main() {
  23.     // create vector holding desired ordering
  24.     vector<string> ord({ "a", "d", "i", "n", "ns", "ne", "vl", "rr" });
  25.  
  26.     // create the map
  27.     map<string,string> MyMap = { {"a","legato"}, {"vl","4"}, {"i","2"}, {"rr","3"}, {"z","unspecified1"}, {"b","unspecified2"}};
  28.  
  29.     // sort the vector
  30.     vector<pair<string,string>> out = KeySort(MyMap, ord);
  31.  
  32.     // put the vector pairs into a string format
  33.     for (auto& it : out) cout << it.first << "=" << it.second << " ";
  34.  
  35.     return 0;
  36. }
Success #stdin #stdout 0s 3420KB
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stdin
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Standard input is empty
stdout
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a=legato i=2 vl=4 rr=3 b=unspecified2 z=unspecified1
https://ideone.com/eAU5US
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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