#include <iostream>
#include <map>
int main()
{
std::map<std::string,std::pair<int,std::map<std::string,int>>> m{ { "first", { 5, {{"a", 10}, {"b", 20}} }} ,
{ "second", { 6, {{"c", 100}, {"d", 200},{"e", 300} }}},
{ "third", { 7, {{"f", 400}} } }};
//////////////////////////////////////////////////////////////////
//PRINTING THE CONTENT OF THE MAP
auto debutBegin = m.cbegin(); //const iterator to beginning of outer map
auto debutEnd = m.cend(); //const iterator to end of outer map
while(debutBegin!=debutEnd)
{
auto beg = debutBegin->second.second.cbegin(); //const iterator to beginning of inner map
auto end = debutBegin->second.second.cend();//const iterator to end of inner map
std::cout<<debutBegin->first<<" ---- "<<debutBegin->second.first<<std::endl;
while(beg!=end)
{
std::cout<<beg->first<<" ";
std::cout<<beg->second<<std::endl;
++beg;
}
debutBegin++;
}
return 0;
}
