#include<iostream>

#include<array> //array STL library

using namespace std;

int main()

{

int basicArray[3]={1,2,3}; //basic array implementation

array<int,3> a; //STL array implementation

a={1,2,3};

int size=a.size(); //size function

cout<<size<<endl;

for(int i=0;i<size;i++)

{

cout<<a[i]<<endl;

}

cout<<"2nd index element: "<<a.at(2)<<endl; //prints 2nd index element... at(i) function

cout<<"empty or not: "<<a.empty()<<endl; // returns 0 if array not empty, 1 if array empty

cout<<"First element: "<<a.front()<<endl;// return first element of array

cout<<"Last element: "<<a.back()<<endl;//return last element of array

}