how to add to map c++ code example

Example 1: add items to map in c++

mp.insert({ 2, 30 });

Example 2: c++ map insert

mymap.insert ( std::pair<char,int>('a',100) );

Example 3: cpp map insert

std::map<TypeA, TypeB> my_map;	// TypeA key; TypeB value
my_map.insert({ key, value }); 	// insert elements in random order