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skiplist is a very useful data structure, which is also common in interviews. Its efficiency is basically equivalent to that of red black tree, and its coding implementation is much simpler than that of red black tree 1. How to implement a dict by yourself Unlike C + +, java and other high-level languages with built-in map, C language does ...

C language and python are often confused, especially I can't help adding a semicolon after Python... Just make a note for myself to save forgetting... (from the little turtle) 7, List list The list contains multiple data types at the same time. The subscript index starts from 0. The subscript index value of the last element is - 1, and so ...

catalogue preface 1, Collection collection 1. Collection characteristics and architecture 2.Collection collection overview and basic usage 3. Common methods and traversal of collection 4. Collection case - the collection stores student objects and traverses them 2, List collection 1.List set overview, features and unique methods 2. Con ...

#Introduction to [Python Foundation Series] List List is one of the most commonly used data structures in Python. Its features include: Ordered, can be traversed by index Store multiple data structures Some characteristics Create array To create an array, you can use [], such as: test_list = ["Jon Snow", "Winterfell", 30] print(jon_sn ...

Set classification Collection interface: single column data, which defines the collection of methods to access a group of objects List: an ordered and repeatable collection of elementsSet: an unordered and non repeatable set of elements Map interface: double column data, which saves the set with mapping relationship "key value pair& ...

Chapter 4 operation list 4.1 traversing the entire list You often need to traverse all the elements of the list and perform the same operation on each element. For example, in a game, you may need to translate each interface element the same distance; For a list containing numbers, you may need to perform the same statistical operation on eac ...

Linked list of C++STL container The underlying principle of C++STL list In fact, its bottom layer is the two-way linked list of data structure. It can be traversed from the beginning or from the end, but it is not cyclic. In STL, such a two-way linked list is encapsulated into a class, which is convenient for developers to use directly an ...

List is one of the most basic python storage methods. Different types of content can be stored through the list, such as string, number, list, dictionary, etc., which can be used as the element value of the list The list is in square brackets     [    ]      Contained, different from tuples and dictionaries, ...

Arrays and collections are containers for storing objects, the former being simple in nature and easy to use; the latter being safe in type, powerful in function, and necessarily related to each other. But if you don't pay attention to details, they are easy to tread. Array to Set Note whether views are used to directly return data from a ...

1. Convert an ordered array into a binary search tree Give you an integer array nums, in which the elements have been arranged in ascending order. Please convert it into a highly balanced binary search tree. A height balanced binary tree is a binary tree that satisfies the requirement that the absolute value of the height difference between t ...