Index
special data structure that helps speed up selected query
An index is a tool used to organize and help locate specific information within a larger text or document. It typically contains alphabetical lists of words or concepts, along with the page numbers or other location indicators where they can be found. Indexes are commonly found in books, technical manuals, and academic research papers. They allow readers to quickly and efficiently find the information they are looking for, without having to search through the entire document. Creating an index involves careful analysis of the content and organization of the text, as well as the needs and interests of the intended audience. A well-designed index can greatly enhance the usability and comprehensibility of a document, especially one that contains complex or technical information.
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