message: Update sequentially-ordinal-rank-tracker.cpp
diff: @@ -8,17 +8,17 @@ public:
  }
  void add(string name, int score) {
  - auto cit1 = s.emplace(-score, name).first;
  - if (cit == cend(s) || *cit1 < *cit) {
  - --cit;
  + auto cit1 = lookup_.emplace(-score, name).first;
  + if (cit_ == cend(lookup_) || *cit1 < *cit_) {
  + --cit_;
  }
  }
  string get() {
  - return (cit++)->second;
  + return (cit_++)->second;
  }
  private:
  - set<pair<int, string>> s;
  - set<pair<int, string>>::const_iterator cit = cend(s);
  + set<pair<int, string>> lookup_;
  + set<pair<int, string>>::const_iterator cit_ = cend(lookup_);
  };
  