Vector

#include <iostream>
#include <vector>

using namespace std;

int main()
{

    vector<int> NUMBERS;
                           /*Index*/
    NUMBERS.push_back(10); //0
    NUMBERS.push_back(20); //1
    NUMBERS.push_back(30); //2
    NUMBERS.push_back(40); //3

    cout << NUMBERS.at(2) << endl;

    //Two examples.

    vector<string> TEXTS;

    TEXTS.push_back("Felix Nilsson");
    TEXTS.push_back("LeafyIsHere");
    TEXTS.push_back("PewDiePie");
    TEXTS.push_back("Bill Gates");

    cout << TEXTS.at(3) << endl;

}