Let Us C Solutions - 17th Edition

Authenticate Solutions of Let US C Exercise (English Edition)

Yashavant Kanetkar

• Publisher: BPB Publications
• Year: 2021
• ISBN:
  9789389845709
• Topic: Computer Science
• Subtopic: Programming
• Index: Computer Science

Appreciate the learning path to CKey Features? Strengthens the foundations, as a detailed explanation of programming language concepts are given? Lists down all the important points that you need to know related to various topics in an organized manner? Provides In-depth explanation of complex topics? Focuses on how to think logically to solve a problemDescriptionBest way to learn any programming language is to create good programs in it. C is not an exception to this rule. Once you decide to write any program you would find that there are always at least two ways to write it. So you need to find out whether you have chosen the best way to implement your program, That's where you would find this book useful. It contains solutions to all the exercises present in Let Us C 17th Edition. If you learn the language elements form Let Us C, write programs for the problems given in the exercises and then cross check your answers with the solutions given in this book you would be well on your way to become a skilled C programmer.What you will learn? C Instructions? Decision Control Instruction, Loop Control Instruction, Case Control Instruction? Functions, Pointers, Recursion? Data Types, The C Preprocessor? Arrays, Strings? Structures, Console Input/Output, File Input/OutputWho this book is forStudents, Programmers, researchers, and software developers who wish to learn the basics of C programming language.Table of Contents1. Introduction2. Before We Begin...3. Getting Started4. C Instructions5. Decision Control Instruction6. More Complex Decision Making7. Loop Control Instruction8. More Complex Repetitions9. Case Control Instruction10. Functions11. Pointers12. Recursion13. Data Types Revisited14. The C Preprocessor15. Arrays16. Multidimensional Arrays17. Strings18. Handling Multiple Strings19. Structures20. Console Input/Output21. File Input/Output22. More Issues In Input/Output23. Operations On Bits24. Miscellaneous Features25. Periodic Tests - I, II, III, IVAbout the AuthorsThrough his books and Quest Video Courses on C, C++, Java, Python, Data Structures,.NET, IoT, etc. Yashavant Kanetkar has created, molded and groomed lacs of IT careers in the last three decades. Yashavant's books and Quest videos have made a significant contribution in creating top-notch IT manpower in India and abroad.Yashavant's books are globally recognized and millions of students/professionals have benefitted from them. Yashavant's books have been translated into Hindi, Gujarati, Japanese, Korean and Chinese languages. Many of his books are published in India, USA, Japan, Singapore, Korea and China.Yashavant is a much sought after speaker in the IT field and has conducted seminars/workshops at TedEx, IITs, IIITs, NITs and global software companies.Yashavant has been honored with the prestigious "Distinguished Alumnus Award" by IIT Kanpur for his entrepreneurial, professional and academic excellence. This award was given to top 50 alumni of IIT Kanpur who have made a significant contribution towards their profession and betterment of society in the last 50 years.In recognition of his immense contribution to IT education in India, he has been awarded the "Best.NET Technical Contributor" and "Most Valuable Professional" awards by Microsoft for 5 successive years.Yashavant holds a BE from VJTI Mumbai and M.Tech. from IIT Kanpur. Yadhavant's current affiliations include being a Director of KICIT Pvt Ltd. And KSET Pvt Ltd.His Linkedin profile: linkedin.com/in/yashavant-kanetkar-9775255

CHAPTER ONE

Getting Started

[A] Which of the following are invalid C constants and why?

‘3.15’	Invalid. A character constant can contain only 1 character
35,550	Invalid. An integer constant cannot contain a comma
3.25e2	Valid
2e-3	Valid
‘eLearning’	Invalid. A character constant can contain only 1 character
“show”	Invalid. A character constant can contain only 1 character
‘Quest’	Invalid. A character constant can contain only 1 character
2^3	Invalid. Number cannot be expressed in this form
4652	Invalid. There cannot be a space within a constant

[B] Which of the following are invalid variable names and why?

B'day	Invalid. A ‘‘‘ is not allowed in variable name
int	Invalid. Keyword cannot be used as a variable name
$hello	Invalid. Variable name must begin with an alphabet or underscore
#HASH	Invalid. Variable name must begin with an alphabet or underscore
dot.	Invalid. A ‘.’ is not allowed in variable name
number	Valid
totalArea	Valid
_main()	Valid
temp_in_Deg	Valid
total%	Invalid. A ‘%’ is not allowed in variable name
1st	Invalid. A variable name must start with an alphabet or an underscore
stack-queue	Invalid. We cannot use hyphen in variable name variable name Invalid. Variable name cannot contain spaces
%name%	Invalid. A variable name must start with an alphabet or an underscore
salary	Valid

[C] State whether the following statements are True or False:

(a) C language has been developed by Dennis Ritchie.

Answer: True

(b) Operating systems like Windows, Unix, Linux and Android are written in C.

Answer: True

(c) C language programs can easily interact with hardware of a PC / Laptop.

Answer: True

(d) A real constant in C can be expressed in both Fractional and Exponential forms

Answer: True

(e) A character variable can at a time store only one character.

Answer: True

(f) The maximum value that an integer constant can have varies from one compiler to another.

Answer: True

(g) Usually all C statements are entered in small case letters.

Answer: True

(h) Spaces may be inserted between two words in a C statement.

Answer: True

(i) Spaces cannot be present within a variable name.

Answer: True

(j) C programs are converted into machine language with the help of a program called Editor.

Answer: False

(k) Most development environments provide an Editor to type a C program and a Compiler to convert it into machine language.

Answer: True

(l) int, char, float, real, integer, character, char, main, printf and scanf all are keywords.

Answer: False

[D] Match the following pairs:

(a) \n	(4) Escape sequence
(b) 3.145	(12) Real constant
(c) -6513	(7) Integer constant
(d) ‘D’	(3) Character constant
(e) 4.25e-3	(11) Exponential form
(f) main()	(6) Function
(g) %f, %d, %c	(10) Format specifier
(h) ;	(2) Statement terminator
(i) Constant	(1) Literal
(j) Variable	(13) Identifier
(k) &	(8) Address of operator
(l) printf()	(9) Output function
(m) scanf()	(5) Input function

[E] Point out the errors, if any, in the followin...

Table of contents

• Cover Page
• Title Page
• Copyright Page
• Dedication Page
• About the Author
• Table of Contents
• Introduction
• 0 Before We Begin…
• 1 Getting Started
• 2 C Instructions
• 3 Decision Control Instruction
• 4 More Complex Decision Making
• 5 Loop Control Instruction
• 6 More Complex Repetitions
• 7 Case Control Instruction
• 8 Functions
• 9 Pointers
• 10 Recursion
• 11 Data Types Revisited
• 12 The C Preprocessor
• 13 Arrays
• 14 Multidimensional Arrays
• 15 Strings
• 16 Handling Multiple Strings
• 17 Structures
• 18 Console Input/Output
• 19 File Input/Output
• 20 More Issues In Input/Output
• 21 Operations On Bits
• 22 Miscellaneous Features
• 23 Periodic Tests - I, II, III, IV