list-begin

////////////////////////////////////////
//      2018/04/25 21:12:41
//      list-begin

// return an iterator to the beginning
#include <iostream>
#include <list>
#include <algorithm>
#include <iterator>
#include <numeric>

using namespace std;

int main(){
    list<int> l(5);
    iota(l.begin(), l.end(), 1);

    list<int>::iterator it = l.begin();
    while (it != l.end()){
        cout << *(it++) << " ";
    }
    cout << endl;

    // third element of the list
    it = l.begin();
    it++;
    it++;
    cout << *it << endl;

    return  0;
}

/*
OUTPUT:
    1 2 3 4 5
    3
*/