The second memory space is continuous and the same type of data. It is because of these restrictions, which have called a "killer" feature: "random access." But beneficial to have disadvantages, these restrictions also made a lot of very inefficient operation of the array, such as in an array in order to delete, insert a data, in order to ensure continuity, we need to do a lot of data movement work.
Many times we are not going to memorize a data structure or algorithm, but to learn thinking skills and process behind it, these things are the most valuable
