game.cpp

#include <iostream>
#include <type_traits>
 
using namespace std;
 
// Derived classes
class Human {
   public:
      static int getMove() { 
          // TODO: add logic
         return 1;
      }
};

class Computer {
   public:
      static int getMove() { 
          // TODO: add logic
         return 0;
      }
};

template <typename F>
int battle(F p1, F p2) {
    return p1() + p2();
}
 
int main(void) {
   Human p1;
   Computer p2;
 
   cout << "value: " << battle(p1.getMove, p2.getMove) << endl;

   return 0;
}