Data structures and algorithms lab4
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This document discusses data structures and algorithms lab 4 on queues. It provides objectives on queues and their differences from stacks. It then discusses queues as an abstract data type with FIFO operations like enqueue to add and dequeue to remove elements. It covers queue implementation using arrays, circular arrays, and lists. Exercises are provided on implementing a stack with two queues and a queue with two stacks. Applications of queues and stacks in getting minimum elements are also discussed. The homework involves finishing exercises and implementing a messaging system using queues.
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easy to understand.
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ECET 370 Week 2 Lab 2
ECET 370 Week 3 Lab 3 Linked Lists
ECET 370 Week 4 Lab 4 Complexity of Computational Problems
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ECET 370 Week 2 Lab 2
ECET 370 Week 3 Lab 3 Linked Lists
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Assg 14 C++ Standard Template Library (STL)(Extra Credit .docx
Assg 14 C++ Standard Template Library (STL)(Extra Credit .docxfestockton Assg 14: C++ Standard Template Library (STL)
(Extra Credit Opportunity)
COSC 2336 Fall 2019
Dates:
Due: Sunday December 08, by Midnight
Objectives
ˆ Practice using an enterprise level set of data structures and algorithms
provided by the STL.
ˆ Connect what we learned about things like stacks, queues, lists, dictio-
naries, etc. to their implementations and applications from the C++
STL.
Description
This assignment is a bit di�erent than the previous assignments in the class,
and is being given as an extra credit opportunity. The assignment is open
ended. I have described 7 tasks or items you can perform, involving the
C++ standard template library. I will give up to 5 points for each of the 7
tasks (for a total of up to 35 points), that will be considered extra credit,
and applied to your programming assignment portion of the course grade to
make up some points on past programs in the class.
This assignment is open ended. I have not given you any starting code or
tests/assertions to use for the assignment. To get credit for the assignment,
you should submit a single �le named "assg14-stl.cpp". The �le should be
compilable and runnable using the C++ IDE/compiler environment you and
I have been using this semester for the class assignments. I would prefer that
you create a separate function for each of the tasks you chose to submit work
for, and that your main function simply calls each of the functions for the
1
task. Your functions should be documented and code formatted using the
usual class style guidelines. You can make up some work for the functions
to do, e.g. to pass them in a parameter and return a value, if you wish.
However, it is also su�cient to simply have void functions that take no
parameters. You should, though, add some output and test assertions of
your own to demonstrate your code working on the tasks using the STL
containers and algorithms. Also if you do more than 1 task demonstrating
a container, make sure you always use a di�erent type to be stored in the
container. For example, don't demonstrate all of your containers on <int>
values, use a variety like <double> <string> <char>, or even better, create
your own small structure or class and demonstrate a container of those user
de�ned types you created.
You should use our textbook for reference on using the STL containers
and algorithms. Another good online reference for the C++ STL is:
cplusplus.com: http://www.cplusplus.com/reference/stl/
You may work on any of the following tasks for this extra credit oppor-
tunity:
1. The STL divides up its containers into 4 categories. The simplest are
the sequence containers, which are intended to store data and access
it in a sequential manner. Vectors are like basic arrays in C, but they
are dynamic and have the ability to resize themselves automatically
when an element is inserted or deleted. Vectors really use C arrays
for their implementation. Insertion can be done in O(1) time to the
end, though if the vecto ...
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ECET 370 Success Begins/Newtonhelp.com
ECET 370 Success Begins/Newtonhelp.comledlang1 For more course tutorials visit www.newtonhelp.com
ECET 370 Week 1 Lab 1
ECET 370 Week 2 Lab 2
ECET 370 Week 3 Lab 3 Linked Lists
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Chapter11
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- 1. DATA STRUCTURES AND ALGORITHMS LAB 4 Bianca Tesila FILS, March 2014
- 2. OBJECTIVES Queue Queue vs stack Applications
- 3. QUEUES instance of an abstract data type (ADT) that formalizes the concept of restricted collection (FIFO = first in first out)
- 4. QUEUES: BASIC OPERATIONS enqueue(x) dequeue() Removes the element from the head of the queue and returns it Returns an error if the stack is empty peek() Adds the element x at the tail of the queue Returns (but does not remove) the element at the head of the queue isEmpty() Returns 1 if the queue is empty and 0 otherwise
- 5. QUEUES: IMPLEMENTATION with a static data structure (array, circular array) with a dynamic data structure (list) ‼Short reminder: Why do we use circular arrays instead of simple arrays?
- 6. QUEUES: WITH SIMPLE ARRAYS
- 7. QUEUES: WITH CIRCULAR ARRAYS
- 8. QUEUES VS STACKS ‼Exercise: Implement a stack using 2 queues. The corresponding class is QueuedStack and has the following methods: an empty constructor destructor push pop There are several solutions for this task. Using a similar approach, implement a queue using 2 stacks: StackedQueue.
- 9. QUEUES AND STACKS: APPLICATIONS ‼Exercise: Implement a stack which provides an efficient get minimum function along with regular push and pop functionality. Hint: use an auxiliary stack. Taking into consideration that a queue can be implemented using 2 stacks, use a similar approach for getting the minimum element out of a queue.
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