Data structures

Implementation

Data structures generally rely on the ability of a computer to store and access data via memory addresses (as specified by a pointer—a bitstring—or more abstractly via references) that can be itself stored in memory and manipulated by the program. For example, arrays and records store elements in contiguous memory locations, requiring a rigid layout but allowing fast indexed access by computing the address through arithmetic operations. In contrast, linked data structures (such as linked lists and trees) store addresses of related elements within their structure, enabling flexible memory usage and dynamic resizing. These different methods of data structuring come with different tradeoffs and are suited to different tasks. For instance, the contiguous memory allocation in arrays facilitates rapid access and modification operations, leading to optimized performance in sequential data processing scenarios.