Information technology assignment 1 unit programming

ix CHAPTER 1: ALGORITHMS, ISSUES RELATED TO ALGORITHMS AND BASIC PROGRAMMING.... 1 Define basic algorithms to carry out an operation and outline the process of programming an application

STUDENT : NGUYEN THANH DAT CLASS > ITO5101

STUDENT ID : BDOO118 SUPERVISOR : NGUYEN HOANG ANH VU

DANANG, JUNE 2022

ASSIGNMENT I FRONT SHEET

Qualification BTEC Level 4 HND Diploma in

Computing Unit number and Unit: Programming

title

Date received

Submission date 16/06/2022 (1stsubmission) 23/06/2022

Date received Re-submission date 23/06/2022 (2ndsubmission) 30/06/2022

Student name NGUYEN THANH D4 Student ID BD00118

Class IT050101 Assessor name NGUYEN HOANG ANH V

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First of all, I would like to thank my mentor Nguyen Hoang Anh Vu for his constant support

in my studies and research, for his patience, motivation, enthusiasm and rich knowledge His

ACKNOWLEDGMENTS

guidance has helped me throughout the time of studying and writing this thesis Without your

wonderful help, I would not have been able to achieve this

In addition to my mentor, I would like to thank my friends who have helped me improve

my knowledge of my subject Not only that, they are always there to support me when I need it And besides, I would like to thank the school for creating all conditions for me to have adequate facilities to help me complete my work

Last but not least, I would like to thank my family: my parents who gave birth to me from the beginning and supported me spiritually They are always behind to care and help me have more motivation to complete the work well

11 PERFOMED STUDENT: NGUYEN THANH DAT

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‘BT E€ ASSURANCE

I declare that this is my work, based on my research, and that I have recognized all materials and sources utilized in its production, including books, papers, reports, lecture notes, and any other type of document, electronic or personal communication I further declare that I have not previously submitted this assignment for assessment in any other unit, except where explicit permission has been granted by all unit coordinators involved, or at any other time in this unit, and that I have not duplicated or st olen ideas from the work of others in any was

Declaration of the learner

I verify that the work I've submitted for this assignment is all my own, and that all

research sources have been properly credited

Signature of the student: DAT Date: 19/02/2022

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TABLE OF CONTENT

M6005 0883.400000 1 ,.\0.9i9).4020960i5i 111 ill ASSURANCE 15 1V V.).0.190669)006 06005 Vv LIST OF TABLES AND FIGURES - ceeee reece HH HH re vil I0 {6090900060001 55114 ix CHAPTER 1: ALGORITHMS, ISSUES RELATED TO ALGORITHMS AND BASIC PROGRAMMING 1 Define basic algorithms to carry out an operation and outline the process of programming an application (LOL) eee e cece eee eee eee e ree ree cae peereee seca teeeae enaeeeeneenaeens 1

1 Provide a definition of what an algorithm is and outline the process in building an bijMiI<:010:080 0070177 ồ Ö5Ả.ố 1 1.1 Define Algorithms - - sàng HH HH nhiệt 1 1.1.1 Give an example of algorithms in real life eee eee 1 1.2 Ways to demonstrate algorithms «0.0.0.0 ie eee eeeeee enero eters cere teeeneenetees 3 1.2.1 The first way: Using Pseudocode «00.0.0 cece eee creer reenter eerneenerees 3 1.2.2 Forexample: Write a program to check if a number is even or odd 3 1.2.3 The second way: Using flowchart 0.00.00 eee cee crete tetera tees 4 1.2.4 Example: Draw any two flowcharts 000 ce cee eseesceeseecneenneseneeneenneene ness 5 1.3 Characteristic of Algorithms SH HH HH Hee 5 1.3.1 Every algorithm must meet the following basic characferistics: 5 1.3.2 Steps to WrHing Good Algorithms - 2 ccc s2 tere renter ereeteens 6 1.4 Steps in program developmeni - cty 9

2 Determine the steps taken from writing code to execufion (M]) 12 2.1 Topic: Write a program to manage student Ïisis . 12 CONCLUSION | eee cece er ere ee reene ene ce ee reee near nee saeeaeseesaeeseenesnevaeeseeseseesaeeas 17

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LIST OF TABLES AND FIGURES

Figure 1-1: Algorithm ch nàng HH HH HH HH HH 1 Figure 1-2: Put the rice in the pOI ng HH TH Hưng 2 Figure 1-3: Washing rice cece cee 2 Figure 1-4: Measure waf€r Ï€V€Ì - ch ng ng ng cư 2 Figure 1-5: Plug In DOWT TH HH nh ng HH kh 3 Figure 1-6: Turn on the butfOnn nhàn ng ng kế 3 Figure 1-7: PseudOCOdE HH TH HH TH TH HH 4 Figure 1-8: Flowchart e.- - 4 Figure 1-9: Flowchart cece ci cescescesseceneesnesneceseeceeeseeseceaessaseaaeeneesesnaessasenteseesnaes 5 Figure 1-10: Problem - kh nàn TH TH ng HH ng gi HH 6 Figure 1-11: Search 6 Figure 1-12: AlgOrithimis - - kh nh TH ng HH nh ng ng như 7 Figure 1-13: Program - c s nh H TgHHnHnHHnit 7 I4) 0020 0i in 8 Figure 1-15: Optimize 01 8 Figure 1-16: AnaÏy§ÏS ch HH ng TH HH HH HH HT HH g 9 IDP))0-0W2E-11.550:):: ỮRiiiidaiÝiiiỔ 9

II )0000139.-.: 0n e 10 Figure I-19: WTit€ a DFOBTAI - Q0 TT nHHH TH HH TH HH Thi 10 Figure 1-20: Íx DTOBTAIN €TTOTS sàng ng ng HH ng tr kế 11 Figure 1-21: Complete DrOBETAIM - 5 22 2x2 22t TH HH Hệ, 11 Figure 1-22: Program mainf†€nance -. - ch ngư 12 Figure 2-1: Search 12 Figure 2-2: Draw flowCharF on ng HH HH HH ni 13 I0 966 13

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Figure 2-4: Code 2.0 cece ceeee cee e ne ree eres teeta eeneneesaee sees seeeaeesaeeseseesaeeseenenseeseee 14 I0 16 can 15 Figure 2-6: PrOgTATN €TTOT - ng ng ng nh Hiệp 15 Figure 2- 7: PrOgTAIM sàn ng Ho HH nh 16 4200023009." 16

vill PERFOMED STUDENT: NGUYEN THANH DAT

an algorithm and how does it work? Let's find out in this post!

w This report includes the following:

Chapter 1: Algorithms, problems related to algorithms and basic programming

1 Define basic algorithms to perform an operation and outline the process of programming an application

1.1 Provides definition of what an algorithm is and outlines the Application building process

1.2 Identify the steps taken from coding to execution

1.3 State what are the characteristics of the algorithm

1.4 Learn and outline the steps to develop a complete program

Chapter 2: Must be able to determine the knowledge to implement an algorithm and give specific illustrative examples

Test an implementation of an algorithm in a suitable language Evaluate the relationship between the written algorithm and the code variant

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CHAPTER 1: ALGORITHMS, ISSUES RELATED TO ALGORITHMS AND BASIC

PROGRAMMING Define basic algorithms to carry out an operation and outline the process of

programming an application (LO1)

1 Provide a definition of what an algorithm is and outline the process in

building an application (P1)

1.1 Define Algorithms

- Algorithms are a fundamental concept of Mathematics and Informatics In simple terms,

an algorithm can be a finite set of explicit instructions for solving problems that can be

followed to solve problems

Figure 1-1: Algorithm 1.1.1 Give an example of algorithms in real life

1.1.1.1 Some jobs in reality are: cooking rice

Input: Rice, water

Output: Cooked rice

1.2.1 The first way: Using Pseudocode

- Pseudocode is an inaccurate way to describe programming Pseudocode is simply the implementation of an algorithm in the form of English annotations and informational text Because it does not belong to any programming language, the syntax of pseudocode will not be the same as that of any other programming language

1.2.2 For example: Write a program to check if a number is even or odd

PERFOMED STUDENT: NGUYEN THANH DAT

output: the equation has a double solution of -b/(2*a)

else {case delta < @ }

output: the equation has no solution

Figure 1-7: Pseudocode 1.2.3 The second way: Using flowchart

Flowchart is also known as flowchart or process diagram, it is used to represent an algorithm or a process, flowchart represents the work steps in the form of boxes

separated in order by arrows

Symbol Name Function

Indicates any type of internal [| Process operation inside the Processor

or Memory Used for any Input / Output

- (VO) operation Indicates that /““ˆ_ f F the computer is to obtain data

or output results Used to ask a question that can Decision be answered in a binary

format (Yes/No, True/False) Allows the flowchart to be drawn without intersecting Connector lines or without a reverse

Indicates the starting or ending

Terminal of the program, process, or

1.3.1 Every algorithm must meet the following basic characteristics:

- There are inputs and outputs: some algorithms have to take input values from a certain set, the algorithm will give output values The output values are the solution of the problem

- Accuracy: in the operation steps must be very clear In other words, under the same condition, two processors performing the same step of the algorithm must give the same result

- Correctness: first of all, the algorithm needs to be correct, that is, after entering data,

the algorithm will work and produce the desired results

- Generality: the algorithm can be applied to problems of the same rank or to already solved problems

- Determine the problem Input -> Process -> Output

- Find the data structure representing the algorithm

- Find the algorithm program

- Build test suites

- Optimize the program

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1.3.2 Steps to Writing Good Algorithms

Step 1: Ldentify the problem

| t3 => Some! ˆ

4 Identify

Problem

Figure 1-10: Problem Step 2: Find the structure and data for the problem

System;

System.Collections Generic System L ng;

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Step 5: Check the program

Íc*] thoigian ame ee eer ela

Susing System;

using System.CoLLections Generic;

using 5ysten.Ling, Hello world !

using System.Text;

using System Threading Tasks;

cs.) C:\windows\system32 Wecome to Viet Nam snasespace thoigian /97/2022 10:07:30 SA {

internal class Program

static void in(string[] args)

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1.4 Steps in program development

Step 1: Analyze and define the problem

- Analyze to find out the problems and needs of the problem to have solutions to meet those needs The purpose of analysis is to better understand the problem and solve it before developing the program

Figure 1-16: Analysis Step 2: Create a solution (give an algorithm)

- Take the problem and start gathering information, see what the purpose of the algorithm is, are there any obstacles, organize the information and draw the diagram

Algorithm Engineering

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Step 3: Program design

Program design is the steps that programmers have to do before they start coding It is important to make the right notes that will make the program complete more easily There are 3 basic steps such as: learn the program, use the model prototyping tool, develop test data

Figure 1-18: Design Step 4 Code program

- After analyzing and creating a suitable solution, we begin to write the program code according to the design that we did before

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Step 5: Debugging the program

- When errors are discovered in the software code that can cause it to not work or hang

We must proceed to fix the program and start running again to check

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Step 7: Deployment and maintenance

- When the program code has met the requirements, it is ready to be put into operation and available to organizations The code after implementation will need improvement

in the future, so it should be upgraded and maintained as needed

Figure 1-22: Program maintenance

2 Determine the steps taken from writing code to execution (M1)

2.1 Topic: Write a program to manage student lists

Step 1: Read the problem and give the easiest solutions to implement

Figure 2-1: Search

12 PERFOMED STUDENT: NGUYEN THANH DAT

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Step 2: Draw a diagram of the program's functions

/ Enter student information

Enter: ID Enter: Full name Enter: score Enter: Email

|

¥

Save student information

Figure 2-2: Draw flowchart

ConsoLeApp28

li:

Oa Scores {

iz aa |

Write() WriteLine("Enter student informatino

Write( "1£ H

ReadLine();

Write("Name: ");

irr Bt Oh Write("Scores F

2 ReadL ine() ; Scores = Parse(st);

Write("Email H ReadL ine(};

Figure 2-4: Code 2

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ÍE*] student ~ _ ft$ConsoleApp20.StudentList

System;

System CoLLections Generic;

1 ConsotLeApp28

write()

sd.Write() List Add(sd Write("Do you want to enter more? (y/n): ")

Entire Solution © 5 Errors

Figure 2-8: Update

16 PERFOMED STUDENT: NGUYEN THANH DAT

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CONCLUSION

After completing this report, I have a better understanding of algorithms, how to draw

a flowchart and how to execute a program It helps me better understand how the surrounding devices work I feel very interesting because I learned the things in the report Thank you so much my mentor

17 PERFOMED STUDENT: NGUYEN THANH DAT

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REFERENCES

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