cpp-class-template-specialization.cpp

#include <iostream>

using namespace std;

enum class Fruit { apple, orange, pear };
enum class Color { red, green, orange };

template <typename T> struct Traits;

// Define specializations for the Traits class template here.

template <>
struct Traits<Fruit>{
    static string name(int index){
        switch(index){
            case 0:return "apple";
            case 1: return "orange" ;
            case 2: return "pear";
        }
        return "unknown";
    }
};

template <>
struct Traits<Color> {
    static string name(int index){
        switch(index){
            case 0:return "red";
            case 1: return "green" ;
            case 2: return "orange";
        }
        return "unknown";
    }
};



int main() {
    int t = 0; std::cin >> t;

    for (int i=0; i!=t; ++i) {
        int index1; std::cin >> index1;
        int index2; std::cin >> index2;
        cout << Traits<Color>::name(index1) << " ";
        cout << Traits<Fruit>::name(index2) << "\n";
    }
}