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Arrays are ordered collections of elements of the same type. They provide random access to the elements through an index, making it easy to retrieve or modify elements at any position in constant time. One key advantage of arrays is their ability to store multiple elements of the same type in contiguous memory locations, which allows for efficient memory management.

On the other hand, linked lists are dynamic data structures that consist of nodes connected together through pointers. Each node holds a value and a reference to the next node in the sequence. Unlike arrays, linked lists do not require contiguous memory allocation.

Arrays provide ___ access to elements, while linked lists allow for ___ memory allocation.