#include <iostream>
#include <vector>
int main() {
// Step 1: Declare a vector of integers
std::vector<int> myVector;
// Step 2: Add elements to the vector
myVector.push_back(10);
myVector.push_back(20);
myVector.push_back(30);
myVector.push_back(40);
// Step 3: Access elements using the subscript operator []
int firstElement = myVector[0];
int secondElement = myVector[1];
// Step 4: Access elements using the at() function
int thirdElement = myVector.at(2);
int fourthElement = myVector.at(3);
// Step 5: Display the accessed elements
std::cout << "First Element: " << firstElement << std::endl;
std::cout << "Second Element: " << secondElement << std::endl;
std::cout << "Third Element: " << thirdElement << std::endl;
std::cout << "Fourth Element: " << fourthElement << std::endl;
return 0;
}