Auch von mir alles Gute. Feiere Schön!
Code: 
#include <iostream>
#include <queue>

std::queue<string> Birthdays;

int main()
{
   // ...
   Birthdays.push("NPC Fighter");
   // ...
   while(!Birthdays.empty())
   {
      if(Birthdays.front() == "NPC Fighter")
         std::cout << "Happy Birthday " << Birthdays.front() << "!" << std::endl;
      Birthdays.pop();
   }
}