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In computer science, the shunting yard algorithm is a method for parsing arithmetical or logical expressions, or a combination of both, specified in infix notation.It can produce either a postfix notation string, also known as reverse Polish notation (RPN), or an abstract syntax tree (AST). [1]
LeetCode LLC, doing business as LeetCode, is an online platform for coding interview preparation. The platform provides coding and algorithmic problems intended for users to practice coding . [ 1 ] LeetCode has gained popularity among job seekers in the software industry and coding enthusiasts as a resource for technical interviews and coding ...
The meet-in-the-middle attack uses a space–time tradeoff to find the cryptographic key in only + encryptions (and () space) versus the expected encryptions (but only () space) of the naive attack. Dynamic programming , where the time complexity of a problem can be reduced significantly by using more memory.
In computer science, tree traversal (also known as tree search and walking the tree) is a form of graph traversal and refers to the process of visiting (e.g. retrieving, updating, or deleting) each node in a tree data structure, exactly once.
LeetCode: LeetCode has over 2,300 questions covering many different programming concepts and offers weekly and bi-weekly contests. The programming tasks are offered in English and Chinese. Project Euler [18] Large collection of computational math problems (i.e. not directly related to programming but often requiring programming skills for ...
In computer science, a min-max heap is a complete binary tree data structure which combines the usefulness of both a min-heap and a max-heap, that is, it provides constant time retrieval and logarithmic time removal of both the minimum and maximum elements in it. [2]
(April 2022) (Learn how and when to remove this message) In computer science , a double-ended queue (abbreviated to deque , / d ɛ k / DEK [ 1 ] ) is an abstract data type that generalizes a queue , for which elements can be added to or removed from either the front (head) or back (tail). [ 2 ]
The diagram demonstrates the former. To find and remove a particular node, one must again keep track of the previous element. Diagram of deleting a node from a singly linked list function removeAfter(Node node) // remove node past this one obsoleteNode := node.next node.next := node.next.next destroy obsoleteNode