data-structures

List of big-O analysis for Python datastructures

随声附和 提交于 2021-02-15 08:45:47
问题 Is there a list of the different data structures and their big-O access times for Python? I was rummaging through the standard library docs and didn't see any, hence the question. :-) 回答1: It's not in the manual, it's here on the python wiki. The table also includes complexities for methods for the data structures as well. Thanks for asking, I'd never seen this before until I looked for it. 来源: https://stackoverflow.com/questions/4755221/list-of-big-o-analysis-for-python-datastructures

List of big-O analysis for Python datastructures

*爱你&永不变心* 提交于 2021-02-15 08:44:33
问题 Is there a list of the different data structures and their big-O access times for Python? I was rummaging through the standard library docs and didn't see any, hence the question. :-) 回答1: It's not in the manual, it's here on the python wiki. The table also includes complexities for methods for the data structures as well. Thanks for asking, I'd never seen this before until I looked for it. 来源: https://stackoverflow.com/questions/4755221/list-of-big-o-analysis-for-python-datastructures

List of big-O analysis for Python datastructures

拥有回忆 提交于 2021-02-15 08:44:01
问题 Is there a list of the different data structures and their big-O access times for Python? I was rummaging through the standard library docs and didn't see any, hence the question. :-) 回答1: It's not in the manual, it's here on the python wiki. The table also includes complexities for methods for the data structures as well. Thanks for asking, I'd never seen this before until I looked for it. 来源: https://stackoverflow.com/questions/4755221/list-of-big-o-analysis-for-python-datastructures

Why do i get the same string value but different arithmetic values when printing from a Doubly Linked List

大憨熊 提交于 2021-02-15 07:33:54
问题 So when printing from a DLL I get for all my records the same string values for the following fields: Last Name, First Name, Address, Place of Residence. All these fields hold string values. Although for each node I print I get the correct arithmetic values such as Customer ID, Address Number, Postal Code and Expenditure. This is my main: #include <stdio.h> #include <stdlib.h> #include "ClientList.h" #define SIZE_T 5000 #define YES 1 #define NO 0 main(int argc, char *argv[]){ FILE *fp=NULL;

Why use dynamic memory allocation(i.e. malloc()) when implementing linked list in c?

跟風遠走 提交于 2021-02-15 05:34:57
问题 Okay this question may sound stupid to the amateur programmers . But seriously this is bothering me and a solemn answer to this doubt of mine is welcomed. I have just started to take my first ever course in data structures. And what is bothering me is this: Assuming C is used, //Implementing a node struct Node { int data; struct *Node; }; Now while creating a node why do we use the dynamic memory allocation technique where we use malloc(). Can't we just create a variable of type ' Struct Node

Why use dynamic memory allocation(i.e. malloc()) when implementing linked list in c?

我只是一个虾纸丫 提交于 2021-02-15 05:34:57
问题 Okay this question may sound stupid to the amateur programmers . But seriously this is bothering me and a solemn answer to this doubt of mine is welcomed. I have just started to take my first ever course in data structures. And what is bothering me is this: Assuming C is used, //Implementing a node struct Node { int data; struct *Node; }; Now while creating a node why do we use the dynamic memory allocation technique where we use malloc(). Can't we just create a variable of type ' Struct Node

Notification and News Area by using Redis

纵然是瞬间 提交于 2021-02-11 18:16:17
问题 I have a photo album system which people can upload photos and interract with other users. I use mySql and Redis to handle traffic and store the data. In my system, users can follow other users, like photos, comment on them and upload new photos. In this scenario, I want to show all events from user's followings on their wall (like facebook timeline). For example, I follow users 30,40,50,60,70 and 80 ids. Whenever they add a new photo, I would like to see them on my wall. The problem is this

How to traverse a B-Tree using Stack without recursion?

别说谁变了你拦得住时间么 提交于 2021-02-11 17:42:03
问题 How to traverse a B-Tree using Stack without recursion? This is function to traverse Btree using Stack but it does not work void StackTraverse( BTreeNode node01 ) { Stack< BTreeNode > stack01 = new Stack< BTreeNode >(); stack01.push( node01 ); // first node "to check" String string01 = ""; int i = 0; while ( stack01.size() > 0 ) { BTreeNode current = stack01.pop(); if ( current.leaf == false ) {// if node is valid for ( i = 0; i < current.n; i++ ) { string01 = string01 + "Node : " + current

How to traverse a B-Tree using Stack without recursion?

限于喜欢 提交于 2021-02-11 17:41:45
问题 How to traverse a B-Tree using Stack without recursion? This is function to traverse Btree using Stack but it does not work void StackTraverse( BTreeNode node01 ) { Stack< BTreeNode > stack01 = new Stack< BTreeNode >(); stack01.push( node01 ); // first node "to check" String string01 = ""; int i = 0; while ( stack01.size() > 0 ) { BTreeNode current = stack01.pop(); if ( current.leaf == false ) {// if node is valid for ( i = 0; i < current.n; i++ ) { string01 = string01 + "Node : " + current

how can I write next table or next array using Knuth Morris Pratt algorithm

≡放荡痞女 提交于 2021-02-11 14:02:26
问题 I am trying to find the next table of the following DFA graph using knuth-morris-pratt (KMP).The DFA for searching for the string "cbcbca". I have seen some tutorials but didn't find a good one. Any help will be appreciatable about how to draw the table with step. Thanks. 来源: https://stackoverflow.com/questions/62496036/how-can-i-write-next-table-or-next-array-using-knuth-morris-pratt-algorithm