View difference between Paste ID: ffEgrpf3 and NiPcHAXj

 #include <vector>
 #include <string>
 #include <utility>
 #include <algorithm>
 
 class StaticMap {
 public:
 
     std::vector<std::pair<std::string, std::string>> all_items;
 
     explicit StaticMap(const std::vector<std::pair<std::string, std::string>>& items) {
         all_items = items;
         sort(all_items.begin(), all_items.end());
     }
 
     bool Find(const std::string& key, std::string* value) const {
         auto it = std::lower_bound(all_items.begin(), all_items.end(), key);
         if (it != all_items.end()){
             *value = (*it).second;
             return true;
         }
         return false;
     }
 };