#include <map>

struct monster
{
    int Damage;
    int PowerUp;
    int Monster_Strength;
    int hp;
    int lvl;
    int money;
    int defense;
};

typedef std::pair<int,int> key ; // dungeon_level,moster_level pair

std::map< key, monster > look_up ;
#include <iostream>

std::ostream& operator << ( std::ostream& stm, const key& k )
{ return stm << '(' << k.first << ',' << k.second << ')' ; }

std::ostream& operator << ( std::ostream& stm, const monster& m )
{
    return stm << "monster{" << m.Damage << ',' << m.PowerUp << ',' << m.Monster_Strength
                << ',' << m.hp << ',' << m.lvl << ',' << m.money << ',' << m.money << '}' ;
}

int main()
{
    // initialize look_up
    {
         monster m11 = { 23, 2, 5, 8, 19, 7, 9 } ; /* monster 1,1*/
         look_up[ key(1,1) ] = m11 ;

         monster m12 = { 5, 7, 15, 2, 8, 15, 6 } ; /* monster 1,2*/
         look_up[ key(1,2) ] = m12 ;

         monster m35 = { 1, 3, 11, 9, 17, 6, 1 } ; /* monster 3,5*/
         look_up[ key(3,5) ] = m35 ;
    }

    key k( 1, 2 ) ;
    std::cout  << k << '\n' ;

    typedef std::map< key, monster >::iterator iterator_t ;
	for( iterator_t iter = look_up.begin() ; iter != look_up.end() ; ++iter )
	    std::cout << "key: " << iter->first << " => data: " << iter->second << '\n' ;
}