This document discusses data structures and algorithms and their importance for computer programs. It defines a computer program as a sequence of instructions to automate tasks or solve problems. Good programs should run correctly, efficiently, and be easy to read, debug, and modify. It states that algorithms and data structures together create programs and are used to model real-world data and problems from storage of patient information to transportation networks. Data structures are described as arrangements of data in memory to organize it efficiently, while algorithms manipulate data in data structures to accomplish tasks through a sequence of instructions.

1. Data Structures &
Algorithms
M H B Ariyaratne
https://goo.gl/LPZSV1

2. Program
A computer program is a sequence of instructions that will automate performing
a specific task or solve a given problem.

3. Good Programs
run correctly
run efficiently
be easy to read and understand
be easy to debug and
be easy to modify

4. Algorithms + Data Structures = Programs

5. Problems sorted with Data Structures
& Algorithms
● Real world data storage
○ Patient
■ Name
■ Date of Birth
■ Age
■ Weight
■ Height
■ Blood Pressure
● Programmers tools
○ Not Real World Data
○ For the use of the Program Itself
● Modeling
○ Graphs, Plane routs,

6. Data Structure
● An Arrangement of Date in a computer's memory
● A particular way of organizing data in a computer so that it can be used
efficiently
● A key organizing factor in software design

7. Algorithms
Manipulate data in data structures in various ways
● often associate with data structures.
● a sequence of instructions that accomplishes a task in a finite time period
● receives zero or more inputs
● produces at least one output
● consists of clear and unambiguous instructions
● terminates after a finite number of steps

8. Thank you