Vector Initialization

We can initialize a vector in several ways:

1. Empty vector:

std::vector<int> numbers;  // Creates an empty vector

2. Vector with initial values:

std::vector<int> numbers = {1, 2, 3, 4};  // Vector with four numbers

3. Vector with several identical values:

std::vector<int> numbers(5, 0);  // Creates a vector with five zeros

Initialization examples with different data types:

std::vector<std::string> names = {"John", "Eva", "Tom"};  // Vector of texts
std::vector<double> prices = {29.90, 149.90, 99.90};     // Vector of decimal numbers
std::vector<bool> completed(3, false);                    // Three false values