#include?#include?#include?#include?#include?using?namespace?std;int?FLAG?=?0;class?port{??public: int?id?=?0; int?link_port?=?0; string?bridge_name?=?““; void?set（int?a） { link_port?=?a; //link_port?=?1; }; //??map?link; //??void?insert?（int?port?string?id）{?link.insert（pair（portid））;} //??string?get（int?port）{ //?map::iterator?iter; //?iter?=?link.find（port）; //? return?iter->second; //? }; //??void?set（int?port?string?id）{ //? map::iterator?iter; //?????????iter?=?link.find（port）; //? iter?->?second?=?id; //??}};class?bridge{??private:??public: string?name; map?ports; map?trans; port?*get_port（int?id） { map::iterator?iter; iter?=?ports.find（id）; return?&iter->second; }; void?update（string?host?int?p） { map::iterator?iter; iter?=?trans.find（host）; if?（iter?!=?trans.end（）） { return; } else { port?*a?=?get_port（p）; trans.insert（pair（host?*a））; } };};static?map?net;//bridge?find_bridge（string?name）//{//////}void?broadcast（string?bridge_id?string?host?int?p_id）{ bridge?*source?=?&net.find（bridge_id）->second; source->update（host?p_id）; map::iterator?iter; cout?<name?< ?< for?（iter?=?source->trans.begin（）;?iter?!=?source->trans.end（）;?iter++） cout?<first?<second.id?< map::iterator?iter_p; //for（iter_p?=?source->ports.begin（）;?iter_p?!=?source->ports.end（）;?iter_p++） // cout<first<<“??“<second.bridge_name?+?‘?‘?+?to_string（iter_p->second.link_port）< //iter_p?=?source.ports.find（p_id）; //int?flag=?p_id;?//iter_p->first; for?（iter_p?=?source->ports.begin（）;?iter_p?!=?source->ports.end（）;?iter_p++） { if?（iter_p->first?==?p_id?&&?FLAG?!=?0） continue; if?（iter_p->second.bridge_name.
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