Source, git Heap is a data structure that can fundamentally change the performance of fairly common algorithms in Computer Science. The heap data structure is called a heap because it satisfies the heap property. The heap property states, that if P i…

For example we have an array of words: [car, done, try, cat, trie, do] What is the best data structure to store the data and easy for search? We can use Trie data structure, it is a tree, but not a binary tree. The reuslts of constructing a tree by u…

源地址:http://en.wikipedia.org/wiki/Heap_%28data_structure%29 在计算机科学领域,堆是指一个特定的基于数结构的数据结构,其必须满足堆属性: 如果A是B的父级节点,那么A和B的排序规则,和整棵数的排序规则一致.也就是说,要么整棵树中父节点都大于或等于字节点,最大的节点是根节点(最大堆):要么整棵树中所有的父节点都小于或者等于子节点,最小的节点是根节点(最小堆).堆结构在一些有关图的算法中有着重要作用,比如宽度优先遍历的Dijkstra's al…

Let's say we are given an array: [,,,,,,] We want to get K = 3 smallest items from the array and using Max heap data structure. So this is how to think about it. 1. We take first K items put it into Max Heap: 5 /     \ 4          1 2. Then we move fo…

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…

#include <iostream> #include <string.h> using namespace std; template <class T> class Heap { public: Heap():n(), capacity() { this->arr = new T[capacity]; } ~Heap() { delete[] arr; } void insert(T v) { if (n >= capacity) { T* tmp =…

A graph is a data structure comprised of a set of nodes, also known as vertices, and a set of edges. Each node in a graph may point to any other node in the graph. This is very useful for things like describing networks, creating related nonhierarchi…

排序算法的介绍 排序也称排序算法 (Sort Algorithm),排序是将一组数据,依指定的顺序进行排列的过程. 排序的分类 1) 内部排序: 指将需要处理的所有数据都加载 到内部存储器(内存)中进行排序. 2) 外部排序法:数据量过大,无法全部加载到内 存中,需要借助外部存储(文件等)进行 排序. 常见的排序算法分类 算法的时间复杂度 度量一个程序(算法)执行时间的两种方法 1.事后统计的方法这种方法可行, 但是有两个问题:一是要想对设计的算法的运行性能进行评测,需要实际运行该程序: 二是所…

super fast sort algorithm in js sort algorithm Promise.race (return the fast one) Async / Await // chrome & fast sort 快速排序 // firefox & merge sort 归并排序 const superFastSort = (arr = []) => { let result = []; // Promise.race + Async / Await retur…

数据结构模板 Chen 2016/12/22 前言 本篇博客的模板,全部是我纯手打的,如果有发现错误,请在下方留言指正:).欢迎大家参考. 有一些地方还不是很完善,等过一阵子用C++实现和部分重构下. C/C++ 常用字符串函数 #include <string.h> strcpy char * strcpy( char * dest, const char * src ); 功能:把 src 所指由NULL结束的字符串复制到 dest 所指的数组中. 说明:src 和 dest 所指内存区域…