Std:: vector batch import fast de duplication method

Destination array std::vector searchapp

inline bool has_scan_impl(const stSWLIST& app1, const stSWLIST& app2)
{
bool cond = app1.path == app2.path;
return cond;
}
const std::string fl =filename
  std::ifstream ifs(fl, ios_base::in);
  if (ifs.is_open())
  {


  	std::string retbuf;
  	std::copy(std::istreambuf_iterator<char>{ifs}, std::istreambuf_iterator<char>{},
  		std::back_inserter(retbuf));
  	ifs.close();
  	cJSON* lpNode = cJSON_Parse(retbuf.c_str());
  	int iSize = cJSON_GetArraySize(lpNode);
  	std::vector<stSWLIST> searchapp2;
  	for (int index = 0; index < iSize; index++)
  	{
  		cJSON* lpArayNode = cJSON_GetArrayItem(lpNode, index);
  		stSWLIST filedump = json2app(lpArayNode);			
  		searchapp2.push_back(filedump);
  					// This is too slow no 
  		/*if (add_scan(filedump)) {
  			continue;
  		}*/
  	}		


  	std::vector<stSWLIST> searchappdel;
  	std::copy(std::find_if(searchapp.begin(), searchapp.end(), [searchapp2](const stSWLIST& app1)
  	{
  		return std::find_if(searchapp2.begin(), searchapp2.end(), [app1](const stSWLIST& app2)
  		{
  			return has_scan_impl(app1, app2);
  		}) != searchapp2.end();
  	}) , searchapp.end(),std::back_inserter(searchappdel));			
  	searchapp.erase(std::remove_if(searchapp.begin(), searchapp.end(), [searchappdel](const stSWLIST& app1)
  	{
  		return std::find_if(searchappdel.begin(), searchappdel.end(), [app1](const stSWLIST& app2)
  		{
  			return has_scan_impl(app1, app2);
  		}) != searchappdel.end();
  		
  	}), searchapp.end());
  	std::copy(searchapp2.begin(), searchapp2.end(), std::back_inserter(searchapp));
  	```