CareerCup

just making compiler compliant. no meaning.

#include <iostream>
using namespace std;
class test
{

int male;
int female;
string why;
public:
test& operator[](string a)
{
if (a == "male")
++male;
else
++female;
return *this;
}
test& operator=(string a)
{
why=a;
return *this;
}
};


int main()
{
test a;
a["male"]["female"] = "super";

return 0;
}

#include <iostream>
#include <map>

using namespace std;


class mmap : public map<string, map<string, string> >
{
public:
    map<string, string>& operator [] (const string& arg)
    {
        if (this->find(arg) == this->end()) {
            map::operator[] (arg) = map<string, string>();
        }
        return map::operator[](arg);
    }

};

int main()
{
    mmap obj = mmap();
    obj["string1"] ["string2"] = "Some value!";
    
    cout << &obj["string1"] << endl;
    cout << obj["string1"]["string2"] << endl;
}

class MM
{
	unordered_map<string, unordered_map<string, MM>> m;	

public:

	unordered_map<string, MM>& operator[](const string& s)
	{
		return m[s];
	}
};

int main()
{
	MM obj1;
	MM obj2;
	obj1["s1"]["s2"] = obj2;
	
	return 0;
}

template <typename T>
using mmap = std::map < std::string, std::map<std::string, T>> ;

then you can do:

mmap<int> x;
x["gigi"]["migi"] = 2;

A working code for this

#include <iostream>
#include <string>
#include <map>
#include <unordered_map>

using namespace std;

template <typename T>
class classMap
{
private:
	map<string, map<string, T> > mmap;
public:
	classMap()
	{
	}
	
	~classMap(){};
	
	map<string, string>& operator [](string str)
	{
		if(mmap.find(str) == mmap.end())
			mmap[str] = map<string, T>();
		return mmap[str];
	}

	void getData()
	{
		for(typename map<string, map<string, T> >::iterator it = mmap.begin(); it != mmap.end(); ++it)
		{
			cout<<it->first<<" , ";
			typename map<string, T>::iterator it_second = (it->second).begin();
			cout<<it_second->first<<" , "<<it_second->second<<endl;
		}
	}
};

int main(int argc, char const *argv[])
{
	classMap<string> c;
	c["rob"]["van"] = "dam";
	c["the"]["big"] = "show";
	c.getData();
	return 0;
}