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Problem solving and program design in C

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Problem Solving and Programming In C Notes and Study Material PDF Free Download

Problem Solving and Programming in C Notes: C is one of the popular programming languages that are simple and flexible. It is a general-purpose programming language that is widely used in different kinds of applications. Operating Systems like Windows and many others are written in C language. Git, Python Interpreter, and Oracle Database are also written in C. This language is often called the base knowledge of programming. If you know this language, it becomes easier for you to learn any other programming language. This is a simple language which can provide faster execution. The demand for C developers is very high in the job market. This programming language can extend itself. It contains various kinds of functions that are part of the library. In this article, you will find complete details about problem-solving and programming of C language Lecture Notes .

Problem Solving And Programming In C Notes and Study Material PDF Free Download

Problem solving and programming in c reference books, problem solving and programming in c curriculum, list of problem solving and programming in c important questions.

• FAQs on Problem Solving And Programming In C Notes

Introduction to Problem Solving And Programming In C

Ritchie first developed this language in 1972. It is a structured language that is widely used in the software development field. For every software developer, it is important to know the C language. This language can handle low-level activities and can be compiled easily. This language is primarily used in UNIX. This language is the successor of the B language. C language is used in databases, utilities, text editors, assemblers, operating systems, and language compilers. In C programming course, you will learn this programming language from scratch. You will find all the study materials of this widely used language from this article.

Anyone interested in making a career in software development should learn C programming. It is because this language is considered as the base language of every other programming language. If you plan to do a course on C programming, you can find the right study material through this article. We have made a list of some important study materials on C programming. You can check out computer programming terminologies once before starting C programming course.

It is a relatively small language, but it is very useful. You need to learn some simple things in C programming. This language was mainly discovered so that programmers can interact with the machines efficiently. To learn this language, you must read the right set of books. We have made a list of some important books on C language.

• C Programming Absolute Beginner’s Guide.
• C Programming Language.
• The C Programming Language 2nd Edition.
• C Programming: A Modern Approach.
• Expert C Programming: Deep Secrets.
• C: The Complete Reference.
• Head First C: A Brain-Friendly Guide.
• Computer Fundamentals and Programming in C.
• Low-Level Programming by Igor Zhirkov
• C in a Nutshell by Peter Prinz & Tony Crawford

Before starting the course on C programming, you must know the syllabus. It is crucial to understand the syllabus. The syllabus of C programming varies depending on the type of course and institution. However, the basic structure of the C programming’s syllabus remains the same. In this article, you will get to know about the necessary details taught in C programming.

C Programming Language Syllabus

Fundamentals of C Language

About C tutorial

Important points about C

Applications of C

C Language and English Language

Features of C

C, C++ and Java

Overview of C Language

History of C

First Program in C Hello World

Basic Structure of C Programming

Tokens in C

Keywords in C

Identifiers in C

Format Specifiers

Format Specifiers Examples

Data Types in C Language

Introduction to Data Types in C

int Data Type in C

float Data Type in C

double Data Type in C

char Data Type in C

Variable in C Language

Variable Introduction in C

Variable Declaration and Initialization

Variable types and Scope in C

Local Variable in C

static Variable in C

Global variables in C

Storage Class in C

Constant in C Language

Constants in C

Operators and Enums in C Language

Introduction to Operator

Arithmetic Operators in C

Relational Operators in C

Bit-wise Operators in C

Logical Operators in C

Assignment Operators in C

Conditional Operator in C

size of() Operator in C

Operator Precedence

Decision Making of C Language

Decision Making in C Introduction

if Statement

if-else Statement

Nested if Statement

if- else if Ladder

switch case

Loop control in C Language

Loop Introduction in C

while loop in C

do-while Loop In C

for Loop in C

Control Flow in C Programming

break Statement in C

continue Statement in C

goto statement in C

Array in C Language

Single Dimensional Array

Multi-Dimensional Array in C

String in C Language

Introduction to String

Function in C Language

Function in C

Function Calling in C

return type in Function

Call by Value in C

User Define Function

Predefined Functions

String functions in C

All String Functions

strcat() function

strncat() function

strcpy() function

strncpy() function

strlen() function

strcmp() function

strcmpi() function

strchr() function

strrchr() function

strstr() function

strrstr() function

strdup() function

strlwr() function

strupr() function

strrev() function

strset() function

strnset() function

strtok() function

Recursion in c

Introduction to Recursion

Direct and Indirect Recursion

Pointer in C Language

Pointer in C

types of pointer

NULL pointer

Dangling Pointer

Void/Generic Pointers

Wild Pointer

Near, Far and Huge Pointer

Pointer Expressions and Arithmetic

Pointer and Array

Strings as pointers

Pointer to Function

Call by Reference in C

Structure in C Language

Structure in C

Nested Structure in C

The array of Structures in C

Pointer to Structure

Structure to Function in C

typedef in C

typedef vs #define in C

Union in C Language

File Input/Output

Introduction to File

File Operation in c

Dynamic Memory Allocation

Introduction to DMA

calloc() and free() function

realloc() and free() function

C Pre-processor

Introduction about Pre-processor

• What is the difference between ++i and i++?
• Give a brief note on the volatile keyword.
• What are the basic data types related to C?
• Explain syntax errors.
• How can you create a decrement and increment statement in C?
• Explain dangling pointer in C.
• What is called the prototype function in C?
• What is a header file? Explain its usage in C programming.
• Explain pointer on a pointer in C language.
• How can you save data in a stack data structure type?

FAQs on Problem Solving and Programming in C Notes

Question 1. What is called the C language?

Answer: C is one of the popular programming languages that are simple and flexible. It is a general-purpose programming language that is widely used in different kinds of applications.

Question 2. What kind of software is written in the C language?

Answer: Operating Systems like Windows and many others are written in C language. Git, Python Interpreter, and Oracle Database are also written in C.

Question 3. When was C language developed?

Ritchie first developed the C language in 1972. It is a structured language that is widely used in the software development field.

Question 4. Is it tough to learn the C language?

Answer: It is not that difficult to learn the C language. C language is often called the base language in programming. After learning the C language, it becomes easier to learn other programming languages like C++, Java, C# etc.

The information provided above regarding the syllabus and study materials for C programming will help in your study. If you have any other questions regarding C programming study materials, please let us know in the comment section.

Problem Solving Through Programming in C

In this lesson, we are going to learn Problem Solving Through Programming in C. This is the first lesson while we start learning the C language.

So let’s start learning the C language.

Table of Contents

Introduction to Problem Solving Through Programming in C

Regardless of the area of the study, computer science is all about solving problems with computers. The problem that we want to solve can come from any real-world problem or perhaps even from the abstract world. We need to have a standard systematic approach to problem solving through programming in c.

computer programmers are problem solvers. In order to solve a problem on a computer, we must know how to represent the information describing the problem and determine the steps to transform the information from one representation into another.

In this chapter, we will learn problem-solving and steps in problem-solving, basic tools for designing solution as an algorithm, flowchart , pseudo code etc.

A computer is a very powerful and versatile machine capable of performing a multitude of different tasks, yet it has no intelligence or thinking power.

The Computer performs many tasks exactly in the same manner as it is told to do. This places responsibility on the user to instruct the computer in a correct and precise manner so that the machine is able to perform the required job in a proper way. A wrong or ambiguous instruction may sometimes prove dangerous.

The computer cannot solve the problem on its own, one has to provide step by step solutions of the problem to the computer. In fact, the task of problem-solving is not that of the computer.

It is the programmer who has to write down the solution to the problem in terms of simple operations which the computer can understand and execute.

Problem-solving is a sequential process of analyzing information related to a given situation and generating appropriate response options.

In order to solve a problem with the computer, one has to pass through certain stages or steps. They are as follows:

Steps to Solve a Problem With the Computer

Step 1: Understanding the Problem:

Here we try to understand the problem to be solved in totally. Before with the next stage or step, we should be absolutely sure about the objectives of the given problem.

Step 2: Analyzing the Problem:

After understanding thoroughly the problem to be solved, we look at different ways of solving the problem and evaluate each of these methods.

The idea here is to search for an appropriate solution to the problem under consideration. The end result of this stage is a broad overview of the sequence of operations that are to be carried out to solve the given problem.

Step 3: Developing the solution:

Here, the overview of the sequence of operations that was the result of the analysis stage is expanded to form a detailed step by step solution to the problem under consideration.

Step 4: Coding and Implementation:

The last stage of problem-solving is the conversion of the detailed sequence of operations into a language that the computer can understand. Here, each step is converted to its equivalent instruction or instructions in the computer language that has been chosen for the implantation.

The vehicle for the computer solution to a problem is a set of explicit and unambiguous instructions expressed in a programming language. This set of instruction is called a program with problem solving through programming in C .

A program may also be thought of as an algorithm expressed in a programming language. an algorithm, therefore, corresponds to a solution to a problem that is independent of any programming language .

To obtain the computer solution to a problem once we have the program we usually have to supply the program with input or data. The program then takes this input and manipulates it according to its instructions. Eventually produces an output which represents the computer solution to the problem.

The problem solving is a skill and there are no universal approaches one can take to solving problems. Basically one must explore possible avenues to a solution one by one until she/he comes across the right path to a solution.

In general, as one gains experience in solving problems, one develops one’s own techniques and strategies, though they are often intangible. Problem-solving skills are recognized as an integral component of computer programming.

Note: Practice C Programs for problem solving through programming in C.

Problem Solving Steps

Problem-solving is a creative process which defines systematization and mechanization. There are a number of steps that can be taken to raise the level of one’s performance in problem-solving.

A problem-solving technique follows certain steps in finding the solution to a problem. Let us look into the steps one by one:

1. Problem Definition Phase:

The success in solving any problem is possible only after the problem has been fully understood. That is, we cannot hope to solve a problem, which we do not understand. So, the problem understanding is the first step towards the solution of the problem.

In the problem definition phase, we must emphasize what must be done rather than how is it to be done. That is, we try to extract the precisely defined set of tasks from the problem statement.

Inexperienced problem solvers too often gallop ahead with the task of the problem – solving only to find that they are either solving the wrong problem or solving the wrong problem or solving just one particular problem.

2. Getting Started on a Problem:

There are many ways of solving a problem and there may be several solutions. So, it is difficult to recognize immediately which path could be more productive. Problem solving through programming in C.

Sometimes you do not have any idea where to begin solving a problem, even if the problem has been defined. Such block sometimes occurs because you are overly concerned with the details of the implementation even before you have completely understood or worked out a solution.

The best advice is not to get concerned with the details. Those can come later when the intricacies of the problem have been understood.

3. Use of Specific Examples:

To get started on a problem, we can make use of heuristics i.e the rule of thumb. This approach will allow us to start on the problem by picking a specific problem we wish to solve and try to work out the mechanism that will allow solving this particular problem.

It is usually much easier to work out the details of a solution to a specific problem because the relationship between the mechanism and the problem is more clearly defined.

This approach of focusing on a particular problem can give us the foothold we need for making a start on the solution to the general problem.

4. Similarities Among Problems:

One way to make a start is by considering a specific example. Another approach is to bring the experience to bear on the current problems. So, it is important to see if there are any similarities between the current problem and the past problems which we have solved.

The more experience one has the more tools and techniques one can bring to bear in tackling the given problem. But sometimes, it blocks us from discovering a desirable or better solution to the problem.

A skill that is important to try to develop in problem-solving is the ability to view a problem from a variety of angles.

One must be able to metaphorically turn a problem upside down, inside out, sideways, backwards, forwards and so on. Once one has developed this skill it should be possible to get started on any problem.

5. Working Backwards from the Solution:

In some cases, we can assume that we already have the solution to the problem and then try to work backwards to the starting point. Even a guess at the solution to the problem may be enough to give us a foothold to start on the problem.

We can systematize the investigations and avoid duplicate efforts by writing down the various steps taken and explorations made.

Another practice that helps to develop the problem-solving skills, once we have solved a problem, to consciously reflect back on the way we went about discovering the solution.

General Problem Solving Strategies:

There are a number of general and powerful computational strategies that are repeatedly used in various guises in computer science.

Often it is possible to phrase a problem in terms of one of these strategies and achieve considerable gains in computational efficiency.

1. Divide and Conquer:

The most widely known and used strategy, where the basic idea is to break down the original problem into two or more sub-problems, which is presumably easier or more efficient to solve.

The Splitting can be carried on further so that eventually we have many sub-problems, so small that further splitting is no necessary to solve them. We shall see many examples of this strategy and discuss the gain in efficiency due to its application.

2. Binary Doubling:

This is the reverse of the divide and conquers strategy i.e build-up the solution for a larger problem from solutions and smaller sub-problems.

3. Dynamic Programming:

Another general strategy for problem-solving which is useful when we can build-up the solution as a sequence of the intermediate steps. Problem Solving through programming in C.

The travelling salesman problem falls into this category. The idea here is that a good or optimal solution to a problem can be built-up from good or optimal solutions of the sub-problems.

4. General Search, Back Tracking and Branch-and-Bound:

All of these are variants of the basic dynamic programming strategy but are equally important.

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Problem Solving Through Programming In C

• Formulate simple algorithms for arithmetic and logical problems
• Translate the algorithms to programs (in C language)
• Test and execute the programs and  correct syntax and logical errors
• Implement conditional branching, iteration and recursion
• Decompose a problem into functions and synthesize a complete program using divide and conquer approach
• Use arrays, pointers and structures to formulate algorithms and programs
• Apply programming to solve matrix addition and multiplication problems and searching and sorting problems 
• Apply programming to solve simple numerical method problems, namely rot finding of function, differentiation of function and simple integration

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• Proctored Exam score =50% of the proctored certification exam score out of 100

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