Display the first element in map : map iterator « map multimap « C++ Tutorial

1. C++ Tutorial
2. map multimap
3. map iterator

#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 first element in m.
  itr = m.begin();
  cout << "Here is the first key/value pair in m: "
       << itr->first << ", " << itr->second << endl;

  return 0;
}