я был вынужден

#include <vector>
#include <string>
#include <set>
#include <algorithm>
#include <typeinfo>
#include <map>
#include <iostream>
#include <fstream>
using namespace std;

namespace my
{


template<typename T>
string typestr(T)
{
    return "undefined";
}

string typestr(int)
{
    return "int";
}

string typestr(bool)
{
    return "bool";
}

template<typename T>
string typestr(const set<T> &);

template<typename T>
string typestr(const vector<T> &);

template<typename A, typename B>
string typestr(const pair<A, B> &);

template<typename K, typename V>
string typestr(const map<K, V> &);


template<typename T>
string typestr(const set<T> &s)
{
    T t;
    return "set<" + typestr(t) + ">";
}

template<typename T>
string typestr(const vector<T> &v)
{
    T t;
    return "vector<" + typestr(t) + ">";
}

template<typename A, typename B>
string typestr(const pair<A, B> &p)
{
    return "pair<" + typestr(p.first) + ", " + typestr(p.second) + ">";
}

template<typename K, typename V>
string typestr(const map<K, V> &m)
{
    K k;
    V v;
    return "map<" + typestr(k) + ", " + typestr(v) + ">";
}

template<typename T>
ostream & operator<<(ostream &ofs, const vector<T> &v)
{
    ofs << "{" + typestr(v) + ": ";
    for (typename vector<T>::const_iterator it = v.begin(); it != v.end(); ++it)
    {
        ofs << *it << " ";
    }
    ofs << "}";
    return ofs;
}

template<typename T>
ostream & operator<<(ostream &ofs, const set<T> &s)
{
    ofs << "{" + typestr(s) + ": ";
    for (typename set<T>::const_iterator it = s.begin(); it != s.end(); ++it)
    {
        ofs << *it << " ";
    }
    ofs << "}";
    return ofs;
}

template<typename K, typename V>
ostream & operator<<(ostream &ofs, const map<K, V> &m)
{
    ofs << "{" + typestr(m) + ": ";
    for (typename map<K, V>::const_iterator it = m.begin(); it != m.end(); ++it)
    {
        ofs << *it << " ";
    }
    ofs << "}";
    return ofs;
}

template<typename A, typename B>
ostream & operator<<(ostream &ofs, const pair<A, B> &p)
{
    ofs << "{" + typestr(p) + ": ";
    ofs << p.first << ", " << p.second;
    ofs << "}";
    return ofs;

}

}


int main()
{
    using namespace my;
    pair<set<int>, vector<map<bool, double> > > p;
    cout << p;
    return 0;
}