The additional task is for students to practice multidimensional arrays.

By default, the bin directories are empty and thus ignored by git. However, we may want to keep the directory ready to make student's life easier when they focus on the learning of the C programming language.

Unit 9 is only about function declarations, not multi-file structures. Therefore, the part about the multi-file structure has been moved to its own exercise as it is taught in the unit 10.

This fourth task allows the student to practise the 'break' keyword.

A third task was added to the exercise. This task requires the student to write a loop that will integrate a statement to skip an iteration.