Introduction to Vectors

Imagine you need to work with multiple values of the same type in your program - for example, a list of numbers or names. Instead of creating a separate variable for each value, we can use a vector.

A vector is like a list or container where we can store multiple values of the same type. For example:

• A list of school grades
• A list of student names
• A list of temperatures for the week

To use vectors, we must first add to the beginning of the program:

#include <vector>

We can do various things with vectors:

• Add a new value to the end.
• Find out how many values it has.
• Read a value at a specific position.