To input and output information to the console in C++, you will use the standard input-output stream (iostream) library.

Output

To output information, you will use the code std::cout. This code is referencing the standard output stream. In most cases, the output device is the display screen.

Here is an example with the classic Hello World! program.

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A queue is a data structure that works by only allowing you to insert elements at the rear of the list and then only allowing you to remove the elements from the front of the list. A queue is based on the first-in, first-out (FIFO) principle. A real-world example would…

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