The document discusses the objectives, outcomes, and content of a course on data structures and algorithms. The main objective is to teach students how to select appropriate data structures and algorithms for solving real-world problems. Students will learn commonly used data structures like stacks, queues, linked lists, trees, and graphs. They will also learn basic algorithms and how to analyze computational complexity. The course will cover topics like recursion, sorting, searching, and hashing. Student performance will be evaluated through quizzes, assignments, projects, and exams.
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2. COURSE OBJECTIVE
The main objective of the course is to teach the
students how to select and design data structures and
algorithms that are appropriate for real world problem
solving.
Developing basic algorithms for manipulating stacks,
queues, linked lists, trees, graphs.
Developing the data structures (abstract data types)
for implementing the aforementioned algorithms.
Developing recursive algorithms for application in
trees and graphs.
This course is also about showing the correctness of
algorithms and studying their computational
complexities.
3. COURSE OUTCOMES
On the successful completion of
students are expected to:
Understand the principle behind
the course,
the use of
Abstract Data Types (ADT)
Learn the commonly used ADT’s and their
implementation
Learn basic algorithms and basic methods used in
design of algorithms
Learn to compute the cost and benefits of
different data structures and algorithms and how
to select algorithms and data structures for a
particular problem.
4. COURSE INFORMATION
Textbooks
⚫ Data Structures Using C and C++
by Y. Langsam, M. J . Augenstein, A. M.
Tenenbaum
⚫ Introduction to Data Structures in C
by Ashok N. Kamthane
⚫ Data Structures and Algorithms
by A. V. Aho, J . E. Hopcroft, J . D. Ullman
⚫ Algorithms in C++
by Robert Sedgewick
5. COURSE OUTLINE
Introduction to Data Structure
Algorithms
Recursion
Stacks
Queues
Lists and linked lists
Trees
Sorting
Searching
Graphs
Hashing
8. WHAT IS DATA STRUCTURE?
Data structure is a representation of data and
the operations allowed on that data.
• A data structure is a way to store and organize data in order
to facilitate the access and modifications.
• Data Structure are the method of representing of logical
relationships between individual data elements related to the
solution of a given problem.
9. BASIC DATA STRUCTURE
Basic Data Structures
Linear Data Structures Non-Linear Data Structures
Arrays Linked Lists Stacks Queues Trees Graphs Hash Tables
11. SELECTION OF DATA STRUCTURE
The choice of particular data model
depends on two consideration:
⚫ It must be rich enough in structure to represent
the relationship between data elements
⚫ The structure should be simple enough that one
can effectively process the data when necessary
12. TYPES OF DATA STRUCTURE
Linear: In Linear data structure, values are arrange in
linear fashion.
⚫ Array: Fixed-size
⚫ Linked-list: Variable-size
⚫ Stack: Add to top and remove from top
⚫ Queue: Add to back and remove from front
⚫ Priority queue: Add anywhere, remove the highest
priority
13. TYPES OF DATA STRUCTURE
Non-Linear: The data values in this structure are
not arranged in order.
⚫ Hash tables: Unordered lists which use a ‘hash function’
to insert and search
⚫ Tree: Data is organized in branches.
⚫ Graph: A more general branching structure, with less
strict connection conditions than for a tree
14. TYPE OF DATA STRUCTURES
Homogenous: In this type of data structures,
values of the same types of data are stored.
⚫ Array
Non-Homogenous: In this type of data structures,
data values of different types are grouped and
stored.
⚫ Structures
⚫ Classes
15. ABSTRACT DATA TYPE AND DATA STRUCTURE
Definition:-
⚫ Abstract Data Types (ADTs) store data and allow various
operations on the data to access and change it.
⚫ An ADT is a collection of data and associated operations for
manipulating that data.
Data Structures
⚫ Physical implementation of an ADT
⚫ data structures used in implementations are provided in a
language (primitive or built-in) or are built from the language
constructs (user-defined)
⚫ Each operation associated with theADT is implemented by one or
more subroutines in the implementation
16. ABSTRACT DATA TYPE
ADTs support abstraction, encapsulation, and
information hiding.
Abstraction is the structuring of a problem into
well-defined entities by defining their data and
operations.
The principle of hiding the used data structure
and to only provide a well-defined interface is
known as encapsulation.
17. THE CORE OPERATIONS OF ADT
Every Collection ADT should provide a
way to:
⚫ add an item
⚫ remove an item
⚫ find, retrieve, or access an item
Many, many more possibilities
⚫ is the collection empty
⚫ make the collection empty
⚫ give me a sub set of the collection
18. No single data structure works well for all purposes, and
so it is important to know the strengths and limitations
of several of them
IMPORTANT !!!
19. STACKS
Collection with access only to the last element
inserted
Last in first out
insert/push
remove/pop
top
make empty
Data4
Data3
Data2
Data1
T
op
20. QU E U ES
Collection with access only to the item that has
been present the longest
Last in last out or first in first out
enqueue, dequeue, front
priority queues and dequeue
Data1 Data2 Data3 Data4
Front Back
21. LIST
A Flexible structure, because can grow and
shrink on demand.
Elements can be:
Inserted
Accessed
Deleted
At any position
last
first
22. TREE
A Tree is a collection of elements called nodes.
One of the node is distinguished as a root, along with a
relation (“parenthood”) that places a hierarchical structure
on the nodes.
Root