STL-map-demo

// SP-STL-02.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <string>
#include <map>
using namespace std;
class Student {
public:
    string FirstName;
    string LastName;
};

int _tmain(int argc, _TCHAR* argv[])
{
    Student s1,s2;
    s1.FirstName="Ivan";
    s1.LastName="Ivanov";
    s2.FirstName="Petro";
    s2.LastName="Petrov";

    map<int,Student> students_book;
    map<int,Student>::iterator student;
    students_book[124]=s1;
    students_book[125]=s2;
    /*cout << students_book[123].FirstName << " "<< students_book[123].LastName<<endl;
    cout << students_book[124].FirstName << " "<< students_book[124].LastName<<endl;*/

    student = students_book.lower_bound(124);
    if (student == students_book.end())
        cout << "Not found" << endl;
    else
    {
        cout << "Found " << student->first <<" "<<student->second.LastName << endl;
    }
    return 0;
}