Vector Declaration

Before we can work with a vector, we must first declare it. Vector declaration has the following form:

std::vector<type> name;

Where:

• type is the data type of values the vector will contain (e.g., int, double, string)
• name is the name of the vector we choose

Declaration examples:

std::vector<int> numbers;         // Vector for integers
std::vector<double> temperatures;    // Vector for decimal numbers
std::vector<std::string> names;      // Vector for texts

Don't forget that to use vectors we must include at the beginning of the program:

#include <vector>

And for working with text (string):

#include <string>