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CSci2110 – Problem Set 2 solution

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Java程序代写： 实现Stack与Queue ADTs

CSci2110 – Problem Set 2

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  • Jan 20th, 2015: Created
  • Jan 31 Added helpful notes in blue

Design and implement your own reusable implementations of the stack and queue ADTs in Java. The purpose of this question simply is to help you get the feel for the design of reusable classes. Thus the actual data structure programming is fairly straightforward, and you have been given most of the structure of the code. Read the following description ofDouble Ended Queues.

A doubly-ended queue is often called a deque. The interface for a deque is the following (which is slightly different than the one given in the textbook):

public interface Deque { public int size(); public boolean isEmpty(); public void insertFirst(Object o); public void insertLast(Object o); public Object removeFirst() throws EmptyStructureException; public Object removeLast() throws EmptyStructureException; public Object firstElement() throws EmptyStructureException; public Object la

COMP2355 lab11 solution

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C++多线程程序作业代写，实现多线程任务分配

In this lab you’ll implement a program which uses multiple threads to divide up a simple problem

into independent sub-tasks. Source code for this lab is supplied in Lab11Source.zip .

Write the function ThreadedSum which is declared as:

double ThreadedSum(int numThreads, size_t arraySize);

You’ll find an empty function definition in main.cpp in the supplied source code. This function

should :

1. Allocate an array on the heap of type double with arraySize elements . This may get too large

for the stack, so make sure you allocate it on the heap (free store).

2. Run numThreads threads, each of which initializes an approximately equal portion of the

array. For example, if numThreads is 8, each thread should initialize 1⁄8 of the array. Make

sure you handle round-off correctly if arraySize is not an even multiple of numThreads. Each

element of the array should be initialized to the square root of the index of the element.

3. Wait for all of the initialization threads to complete,

CS 4320 CS5320 Homework 2 Solution

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康奈尔数据库assignment代写，Java实现B+ tree

题目描述： 1 Coding Part: B+ Tree (50 points) A Note on Academic Integrity: You may discuss your solutions with other students in the class, but do not copy any code from any other students in the class. We will be running submissions through an automated tool that detects code similarity; if you copy code, you will get caught. In this section, you are asked to implement a basic BPlusTree structure as described in the textbook (pages 344-356). For simplicity, you can assume for this project: • no duplicate keys will be inserted • keys will implement interface Comparable 1.1 Description A B+ tree is balanced tree structure in which the index nodes direct the search and the leaf nodes contain the data entries. (1) Constraints and Properties of B+ trees: • Keys are sorted in the nodes. • Nodes are sorted by their keys. For Index Nodes, the B+ tree asserts that for all keys k and adjacent pointers, before(k) and after(k), it must be that: In other words, k is the key that divides the