Plain old data structure, 缩写为POD, 是C++语言的标准中定义的一类数据结构,POD适用于需要明确的数据底层操作的系统中.POD通常被用在系统的边界处,即指不同系统之间只能以底层数据的形式进行交互,系统的高层逻辑不能互相兼容.比如当对象的字段值是从外部数据中构建时,系统还没有办法对对象进行语义检查和解释,这时就适用POD来存储数据. 定义 POD类型包括下述C++类型,以及其cv-qualified的类型,还有以其为基类型的数组类型: 标量类型(scalar typ…

Plain Old Data (POD) POD指的是这样一些数据类型:基本数据类型.指针.union.数组.构造函数是 trivial 的 struct 或者 class. POD用来表明C++中与C相兼容的数据类型,可以按照C的方式来处理(运算.拷贝等).非POD数据类型与C不兼容,只能按照C++特有的方式进行使用. 很多时候,在开发一个C++程序时,程序员会发现需要以统一的风格来操作多个不同的类型.确实,C++以 union 关键字直接提供了这种支持: union { int i; dou…

Implement a data structure supporting the following operations: Inc(Key) - Inserts a new key with value 1. Or increments an existing key by 1. Key is guaranteed to be a non-empty string. Dec(Key) - If Key's value is 1, remove it from the data structu…

Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string containing only letters a-z or .. A . means it can represent any one letter…

Design and implement a TwoSum class. It should support the following operations:add and find. add - Add the number to an internal data structure.find - Find if there exists any pair of numbers which sum is equal to the value. For example,add(1); add(…

http://staff.city.ac.uk/~ross/papers/FingerTree.html Summary We present 2-3 finger trees, a functional representation of persistent sequences supporting access to the ends in amortized constant time, and concatenation and splitting in time logarithmi…

Mesh Data Structure in OpenCascade eryar@163.com 摘要Abstract:本文对网格数据结构作简要介绍,并结合使用OpenCascade中的数据结构,将网格数据在OpenSceneGraph中可视化. 关键字KeyWords:OpenCascade.OpenSceneGraph.Triangulation.Mesh Data Structure 一.引言 Introduction 三角网格就是全部由三角形组成的多边形网格.多边形和三角网格在图形学和建…

Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data structure.find - Find if there exists any pair of numbers which sum is equal to the value. For example, add(1); ad…

我要在这里装个逼啦 class WordDictionary(object): def __init__(self): """ initialize your data structure here. """ self._dict = {} def addWord(self, word): """ Adds a word into the data structure. :type word: str :rtype:…

Design a data structure that supports the following two operations: void addWord(word)bool search(word) search(word) can search a literal word or a regular expression string containing only letters a-z or .. A . means it can represent any one letter.…

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=5739 Description Professor Zhang has an undirected graph G with n vertices and m edges. Each vertex is attached with a weight wi. Let Gi be the graph after deleting the i-th vertex from graph G. Pro…

原题链接在这里:https://leetcode.com/problems/two-sum-iii-data-structure-design/ 题目: Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data structure.find - Find if there exists…

Implement a data structure supporting the following operations: Inc(Key) - Inserts a new key with value 1. Or increments an existing key by 1. Key is guaranteed to be a non-empty string. Dec(Key) - If Key's value is 1, remove it from the data structu…

题目链接: Basic Data Structure Time Limit: 7000/3500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 207    Accepted Submission(s): 41 Problem Description Mr. Frog learned a basic data structure recently, which is called…

Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data structure.find - Find if there exists any pair of numbers which sum is equal to the value. 这个解法很容易想到,但很容易超时. 基本来说有…

I Can Guess the Data Structure! There is a bag-like data structure, supporting two operations: 1 x Throw an element x into the bag. 2 Take out an element from the bag. Given a sequence of operations with return values, you're going to guess the data…

Implement a Trie Data Structure, and search() & insert() function: we need to implement both Class Trie and Class TrieNode Class Trie: import java.util.ArrayList; import java.util.List; public class Trie { private TrieNode root; /** * Constructor */…

Basic Data Structure Time Limit: 7000/3500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Problem Description Mr. Frog learned a basic data structure recently, which is called stack.There are some basic operations of stack: ∙ PUSH x: p…

Data Structure? Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Problem Description Data structure is one of the basic skills for Computer Science students, which is a particular way of storing and organizing data…

Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string containing only letters a-z or .. A . means it can represent any one letter…

https://leetcode.com/problems/add-and-search-word-data-structure-design/ Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string co…

UVa11995  I Can Guess the Data Structure! 思路:边读边模拟,注意empty的判断! 代码如下: #include<iostream> #include<queue> #include<stack> using namespace std; int main(){ queue<int> q; priority_queue<int> pri_q; stack<int> sta; int n; wh…

Data Structure Problem Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/483 Description Data structure is a fundamental course of Computer Science, so that each contestant is highly likely to solve this data structu…

Question: Design and implement a TwoSum class. It should support the following operations: add and find. add(input) – Add the number input to an internal data structure. find(value) – Find if there exists any pair of numbers which sum is equal to the…

题目: Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string containing only letters a-z or .. A . means it can represent any one le…

https://leetcode.com/problems/add-and-search-word-data-structure-design/ 本题是在Trie树进行dfs+backtracking操作. Trie树模板代码见:http://www.cnblogs.com/fu11211129/p/4952255.html 题目介绍: Design a data structure that supports the following two operations: void addWord…

题目: Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data structure.find - Find if there exists any pair of numbers which sum is equal to the value. For example, add(1)…

leetcode面试准备:Add and Search Word - Data structure design 1 题目 Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string containing on…

I Can Guess the Data Structure! There is a bag-like data structure, supporting two operations: 1 x Throw an element x into the bag. 2 Take out an element from the bag. Given a sequence of operations with return values, you're going to guess the data…

Basic Data Structure Time Limit: 7000/3500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 872    Accepted Submission(s): 236 Problem Description Mr. Frog learned a basic data structure recently, which is called stac…