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A binary heap is a complete binary tree that satisfies the heap property: the key in each node is either greater than or equal to (max-heap) or less than or equal to (min-heap) the keys in the node's children. Learn how to insert, extract, decrease-key and merge elements in a binary heap with O (log n) time complexity.
A heap is a tree-based data structure that satisfies the heap property: the key of a parent node is always greater than or equal to the key of its child node in a max heap, or vice versa in a min heap. Learn about the operations, implementation, and variants of heaps, and how they are used in sorting and graph algorithms.
A min-max heap is a binary tree data structure that combines a min-heap and a max-heap, allowing constant time retrieval and logarithmic time removal of both the minimum and maximum elements. Learn how to build, insert, delete, and perform other operations on min-max heaps with examples and algorithms.
Learn about the C standard library functions for operations on strings and wide strings, such as copying, concatenation, searching and tokenization. Find out the definitions, encodings, features and headers of C string handling.
Learn the rules and features of Python programming language, such as keywords, indentation, data structures, and error handling. Compare Python with other languages ...
A string is a sequence of characters used to store human-readable or machine-readable data in computer programming. Learn about the history, types, length, encoding and operations of strings in different programming languages.
HKDF is a simple and secure algorithm that converts input keying material into pseudorandom keys for various cryptographic applications. It consists of two functions: HKDF-Extract and HKDF-Expand, which use HMAC as the underlying hash function.
Learn about the syntax of C, a popular and portable programming language that allows for terse and high-level code. Find out the details of C's primitive data types, such as integers, reals, complex, and enumerated types.