Article directory Preface Example: Google classic interview questions The principle and implementation of dictionary tree definition Dictionary tree structure Dictionary tree operations String insertion String query Implementation of dictionary tree Character set array method Node class structure design Node interface character map Code implementation of node class Dictionary tree structure design Dictionary tree interface implementation […]
Tag: dictionary
The use of Dictionary＜TKey, TValue＞, SortedDictionary＜TKey, TValue＞ and SortedList＜TKey, TValue＞ in C#
1. Dictionary DictionaryThe generic class provides a mapping of a set of keys to a set of values. Each addition to the dictionary contains a value and its associated key. Retrieving a value using its key is very fast, close to O (1) , because the Dictionary class is implemented as a hash table. The […]
C# Solution to XML serialization or deserialization error of dictionary container Dictionary＜TKey, TValue＞
1. Problem description When using C# to perform XML serialization on the contents of the dictionary container Dictionary, an error occurs [System.Exception: “Type System.Collections.Generic.Dictionary`2 is not supported [[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], because it implements IDictionary.”] as shown below: Or the following error will be reported during the deserialization operation [System.Exception: […]
10.8 Queue arrangement, minimum number of dictionary searches, expression conversion and calculation simulation (stack, queue)
Queue arrangement 1160 Flexible insertion and deletion If implemented using a queue, it is a double-ended queue. The first stage is to find the students with corresponding numbers, and then decide how to insert them based on the value of p The second stage is also to find the student with the corresponding number, and […]
Electronic dictionary based on QT and MySQL
Data structure course design (1) Requirements and specifications Problem description: Design a Chinese-English dictionary query system. For example, if the Chinese word “apple” is given, the corresponding English word “apple” can be found. Programming tasks: 1) Build your own system’s vocabulary and storage structure to facilitate better query; 2) The system has basic query, add, […]
HNU-Python (Business) Experimental Dictionary (Introduction to Computing and Artificial Intelligence)
Task Description The task of this level: write a program that can count the number of works of each author in the document “Middle School Poetry.txt”. Traverse each line in the document, extract the author’s name, and add it as a key to the dictionary. The value of the dictionary is the number of works. […]
What Are You Talking About HDU – 1075 (Dictionary Tree)
What Are You Talking About HDU – 1075 Question link: https://vjudge.net/problem/HDU-1075 topic: Ignatius is so lucky that he met a Martian yesterday. But he didn’t know the language the Martians use. The Martian gives him a history book of Mars and a dictionary when it leaves. Now Ignatius want to translate the history book into […]
Python parses MDX dictionary data and saves to Excel
Click “Python Crawler and Data Mining” above to follow Reply “Books” to receive a total of 10 Python e-books from entry to advanced now day chicken Soup Chana Yayan, deeply pursuing the late emperor’s edict, I am extremely grateful for the kindness. Raw data and processing results: https://gitcode.net/as604049322/blog_data/-/tree/master/mdx After downloading the help.mdx dictionary, we cannot […]
Full permutation algorithm (recursive and dictionary)
An algorithmic proposition: given a string S[0…N-1], design an algorithm to enumerate the full arrangement of S. For example: 123, the full arrangement is: 123,132,213,231,312,321 I am just ignorant. It took me a day and a half to finally sort out the dictionary. I can’t see the code written by the master. There are still […]
Redis data structure 4: dictionary and hash table
This article was first published on the public account: Hunter backend Original link: Redis data structure four: dictionary and hash table Dictionaries are widely used in Redis. Before introducing dictionaries, let’s first introduce several concepts of dictionaries, hash tables, and hash table nodes. In Redis, the dictionary is implemented using a hash table and some […]