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

using namespace std;

int main() {

  map<string, int> m;

  m.insert(pair<string, int>("A", 100));
  m.insert(pair<string, int>("G", 300));
  m.insert(pair<string, int>("B", 200));

  // Declare an iterator to a map<string, int>.
  map<string, int>::iterator itr;

  // Display the last element in m.
  itr = m.end();
  --itr;
  cout << "Here is the last key/value pair in m: "
       << itr->first << ", " << itr->second << "\n\n";


  return 0;
}
