send tournament bracket updates when any match is complete

src/Episode3/Tournament.cc

@@ -515,6 +515,10 @@ shared_ptr<Tournament::Team> Tournament::team_for_serial_number(
   throw logic_error("serial number registered in tournament but not in any team");
 }
 
+const set<uint32_t>& Tournament::get_all_player_serial_numbers() const {
+  return this->all_player_serial_numbers;
+}
+
 void Tournament::start() {
   if (this->current_state != State::REGISTRATION) {
     throw runtime_error("tournament has already started");

src/Episode3/Tournament.hh

@@ -107,6 +107,7 @@ public:
   std::shared_ptr<Match> next_match_for_team(std::shared_ptr<Team> team) const;
   std::shared_ptr<Match> get_final_match() const;
   std::shared_ptr<Team> team_for_serial_number(uint32_t serial_number) const;
+  const std::set<uint32_t>& get_all_player_serial_numbers() const;
 
   void start();