Statements: This blog was written by me, but most of content  is quoted from book[Data Structure with Java Hubbard] [Description] This simulationillustrates objectoriented programming(OOP). Java objects are instantiated to represent all the interacti…

[Description] A queue is a collection that implements the first-in-first-out protocal. This means that the only accessiable object in the collection in the first one that was inserted. The most common example of a queue is a waiting line. [Interface]…

[Description] At ree is a nonlinear data structure that models a hierarchical organization. The characteristic eatures are that each element may have several successors (called its "children") and every element except one (called the "root&…

[翻译]The Layout System 布局 In Sencha Touch there are two basic building blocks: componentsand containers. When you instantiate both with no configuration, they look the same. However, there is one important difference: containers can containcomponents…

In an attempt to remove duplicate elements from list, I go to the lengths to take advantage of  methods in the java api. After investiagting the document of java api, the result is so satisfying that I speak hightly of wisdom of developer of java lan…

Children's Queue Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11117    Accepted Submission(s): 3577 Problem Description There are many students in PHT School. One day, the headmaster whose n…

The Java Connections FrameWork is a group of class or method and interfacs in the java.util package. Its main purpose is to provide a unified framework for implementing common data structure. A collections is a object that contains other objects,whic…

题目: Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front of queue. peek() -- Get the front element. empty() -- Return whether the queue is empty. Notes:…

首先我们知道队列是先进先出的机制,所以在处理并发是个不错的选择.然后就写两个队列的简单应用. Queue 命名空间 命名空间:System.Collections,不在这里做过多的理论解释,这个东西非常的好理解. 可以看下官方文档:https://docs.microsoft.com/zh-cn/dotnet/api/system.collections.queue?view=netframework-4.7.2 示例代码 我这里就是为了方便记忆做了一个基本的例子,首先创建了QueueTest类…

http://www.bogotobogo.com/cplusplus/CppCrashDebuggingMemoryLeak.php Incorrect Memory Usage and Corrupted Memory Here are the primary sources of the memory related problems. Using memory not initialized Using memory that we do not own Using more memor…

题目 题目     分析 练习STL     代码 #include <bits/stdc++.h> using namespace std; int main() { int t; scanf("%d",&t); while(t--) { int n,m,a[105],cnt=0; queue <int> que; priority_queue <int> Big; scanf("%d%d",&n,&m)…

队列(Queue) 在多个线程之间安全的交换数据信息,队列在多线程编程中特别有用 队列的好处: 提高双方的效率,你只需要把数据放到队列中,中间去干别的事情. 完成了程序的解耦性,两者关系依赖性没有不大. 一.队列的类型: 1.lass queue.Queue(maxsize=0) 先进先出,后进后出 import queue q = queue.Queue() # 生成先入先出队列实例 q.put(1) # 先放进1,再放入2 q.put(2) print(q.get()) # # 输出 1 2…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 Python解法 Java解法 日期 [LeetCode] 题目地址:https://leetcode.com/problems/implement-queue-using-stacks/ Total Accepted: 42648 Total Submissions: 125482 Difficulty: Easy 题目描述 Implement t…

双端队列+二分. #include <cstdio> #define MAXN 1000005 typedef struct { int id; int p; } node_st; node_st que[MAXN]; ,front = ; void Insert(int id, int p) { int l = front, r = rear, mid; while ( l <= r) { mid = (l+r)>>; if (que[mid].p == p) break;…

Method 1: Add one list into the other list. For example, if list1is {22, 33, 44, 55} and  list2 is {66, 77, 88, 99},then append(list1, list2)will change list1to {22, 33, 44, 55, 44, 66, 77, 88, 99}. static void append(Node list1, Node list2) { if (li…

Method 4: Gets the value of element number i For example, if list is {22, 33, 44, 55, 66, 77, 88, 99}, then get(list, 2) will return 44. Solution 1: static int get(Node list, int i) { if (i < 0) { throw new IllegalArgumentException(); } for (int j =…

Last night it took me about two hours to learn arrays. For the sake of less time, I did not put emphaises on the practice question, just now when reading the book, I found that some methods referred to arrays are so beneficial to us. So in here make…

Arrayss work well for unordered sequences, and even for ordered squences if they don't change much. But if you want to maintain an ordered list that allows quick insertions and deletions, you should use a linked data structure. so inserting an elemen…

/** * Method 1: Delete the input element x  * and meanwhile keep the length of array after deleted n * @param a  the array * @param n  the length of array after deleted. * @param x  the element that need to be deleted. */ static void delete(int[] a,…

In the Java collection framework, there are three similar methods, addAll(),retainAll() and removeAll().  addAll(), the retainAll(), and the removeAll()methods are equivalent to the set theoretic union,  intersection, and complement operators, respec…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/orderly-queue/description/ 题目描述: A string S of lowercase letters is given. Then, we may make any number of moves. In each move, we choose one of the first K l…

这题做了几个小时,基本思路肯定是求两点路径中的割点数目,思路是tarjan缩点,然后以割点和连通块作为新节点见图.转化为lca求解.结合点——双连通分量与LCA. /* 3686 */ #include <iostream> #include <sstream> #include <string> #include <map> #include <queue> #include <set> #include <stack>…

Lab 1: 应用程序建模 实验目标 这个实验的目的是展示如何在Visual Studio 2010旗舰版中进行应用程序建模.团队中的架构师会通过建模确定应用程序是否满足客户的需求. 你可以创建不同级别的详细模型,并将它们彼此结合.测试然后发布到你的开发计划里. 在这个实验中, 我们将重点放在如何创建一系列简单的系统建模图形上. 每个练习应该在 30分钟内完成. Exercise 1 – 理解用户需求 绘制活动.类以及其他UML图形能帮助架构师清晰辨别客户的习惯.业务规则以及其他需求,从而使设计…

原文网址:http://hualang.iteye.com/blog/1141315 Android build system就是编译系统的意思 在我们需要向自己编译的源代码中增加模块的时候,需要一些规则,当然这个规则都是类似的. Android.mk文件解析 让我们来看一个 Android.mk 文件的样子 LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE :=Hello LOCAL_SRC_FILES := hel…

在Ant里可以使用echoproperties task来达到目的 <target name="run"> <echoproperties /> </target>…

本文档将介绍:如何通过Linux审计系统auditd监测WebShell执行系统命令的行为. 测试环境:CentOS7.0_x64 auditd简介 Linux审计系统提供了一种跟踪系统上与安全相关的信息的方法.基于预先配置的规则,审核生成日志条目以记录尽可能多的关于系统上发生的事件信息. auditd(或auditd守护进程)是Linux系统中重要的内核审计组件,其负责将审计记录写入磁盘.使用auditd可以实现如下场景的审计监控: • 监控文件访问 • 监控系统调用 • 记录用户命令执行 •…

1 详细异常信息 rror: SYSTEM:CATALOG (state=,code=) org.apache.phoenix.exception.PhoenixIOException: SYSTEM:CATALOG at org.apache.phoenix.util.ServerUtil.parseServerException(ServerUtil.java:) at org.apache.phoenix.query.ConnectionQueryServicesImpl.metaData…

题目如下: Given a list of directory info including directory path, and all the files with contents in this directory, you need to find out all the groups of duplicate files in the file system in terms of their paths. A group of duplicate files consists o…

java获取JVM启动参数 System.getProperty取 -D后的key即可 public class Test { public static void main(String[] args){ System.out.println(System.getProperty("configurePath")); } }…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 日期 题目地址:https://leetcode.com/problems/find-duplicate-file-in-system/description/ 题目描述 Given a list of directory info including directory path, and all the files with contents i…