vectors.cpp
#include <vector> // vector to store int vector<int> vec; // size of vector cout << vec.size() << endl; // 0 // push values into vector for (int i = 1; i <= 5; i++) { vec.push_back(i); } // new size of vector cout << vec.size() << endl; // 5 // access value in vector cout << vec[0] << endl; // 1