The document provides an overview of algorithms and data structures, defining algorithms as structured sequences of steps to solve problems and data structures as methods for organizing data effectively. It discusses the correlation between algorithms and data structures, highlighting the importance of data structure in optimizing algorithm implementation. Additionally, it covers algorithm characteristics, basic constructions, examples, and notation methods such as flowcharts and pseudocode.

1. Algorithm and
Data Structure
Andi Nurkholis, S.Kom, M.Kom
Study Program of Informatics
Faculty of Engineering and Computer Science
SY. 2020-2021
February 15, 2021

2. 2
1 Concept of Algorithm and
Data Structure

3. 3
What is Algorithm?
Algorithm is a sequence of steps to solve problems
that are arranged systematically and structured as
outlined in standard / universal notation

4. 4
What is Data Structure?
Data Structure is a way of collecting and organizing data in such a
way that we can perform operations on these data in an effective
way. Data Structures is about rendering data elements in terms of
some relationship, for better organization and storage.

5. 5
Correlation of Algorithm
and Data Structure
Data structure plays an important role in data organization for the optimal
algorithm implementation process

6. 6
History of Algorithm
Algorism Algorithm
Algoritma
Algoritme
Abu Ja’far Muhammad
Ibnu Musa Al-Khuwarismi
The Book of Al Jabar wal
Muqabala

7. 7
Characteristic
of Algorithm
1) Have a scope
2) Unambiguous
3) Input
4) Output
5) Rational
6) Zero mistake

8. 8
Basic Constructions of Algorithm
• Sequence structure
• Selection structure
• Repetition structure

9. 9
Example of
Algorithm
• Ambil kantong kentang dari rak
• Ambil panci dari almari
• depend on baju
• berwarna muda : pakai celemek
• tidak berwarna muda : -
• while jumlah kentang terkupas belum
cukup do
• depend on kantong kentang
• ada isinya : kupas 1 kentang
• tidak ada isinya : (1) ambil
kantong kentang lain dari rak, (2)
kupas 1 kentang

10. 10
Notation of
Algorithm
• States the algorithm steps in a series of
descriptive sentences
• Use flowchart
• Use pseudocode

11. Thank You, Next …
Array and Struct
February 15, 2021
Andi Nurkholis, S.Kom, M.Kom
Study Program of Informatics
Faculty of Engineering and Computer Science
SY. 2020-2021