The last variant of arrays described in this book is a jagged array, which is also referred to as an array of arrays. It sounds complicated, but fortunately, it is very simple. A jagged array could be understood as a single-dimensional array, where each element is another array. Of course, such inner arrays can have different lengths or they can even be not initialized.
If you take a look at the following diagram, you will see an example of a jagged array with four elements. The first element has an array with three elements (9, 5, -9), the second element has an array with five elements (0, -3, 12, 51, -3), the third is not initialized (NULL), while the last one is an array with only one element (54):
Before proceeding to the ...
