c programming assignment

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Course info, instructors.

• Daniel Weller
• Sharat Chikkerur

Departments

• Electrical Engineering and Computer Science

As Taught In

• Programming Languages
• Software Design and Engineering

Learning Resource Types

Practical programming in c, course description.

You are leaving MIT OpenCourseWare

• C All Exercises & Assignments

Write a C program to check whether a number is even or odd

Description:

Write a C program to check whether a number is even or odd.

Note: Even number is divided by 2 and give the remainder 0 but odd number is not divisible by 2 for eg. 4 is divisible by 2 and 9 is not divisible by 2.

Conditions:

• Create a variable with name of number.
• Take value from user for number variable.

Enter the Number=9 Number is Odd.

Write a C program to swap value of two variables using the third variable.

You need to create a C program to swap values of two variables using the third variable.

You can use a temp variable as a blank variable to swap the value of x and y.

• Take three variables for eg. x, y and temp.
• Swap the value of x and y variable.

Write a C program to check whether a user is eligible to vote or not.

You need to create a C program to check whether a user is eligible to vote or not.

• Minimum age required for voting is 18.
• You can use decision making statement.

Enter your age=28 User is eligible to vote

Write a C program to check whether an alphabet is Vowel or Consonant

You need to create a C program to check whether an alphabet is Vowel or Consonant.

• Create a character type variable with name of alphabet and take the value from the user.
• You can use conditional statements.

Enter an alphabet: O O is a vowel.

Write a C program to find the maximum number between three numbers

You need to write a C program to find the maximum number between three numbers.

• Create three variables in c with name of number1, number2 and number3
• Find out the maximum number using the nested if-else statement

Enter three numbers: 10 20 30 Number3 is max with value of 30

Write a C program to check whether number is positive, negative or zero

You need to write a C program to check whether number is positive, negative or zero

• Create variable with name of number and the value will taken by user or console
• Create this c program code using else if ladder statement

Enter a number : 10 10 is positive

Write a C program to calculate Electricity bill.

You need to write a C program to calculate electricity bill using if-else statements.

• For first 50 units – Rs. 3.50/unit
• For next 100 units – Rs. 4.00/unit
• For next 100 units – Rs. 5.20/unit
• For units above 250 – Rs. 6.50/unit
• You can use conditional statements.

Enter the units consumed=278.90 Electricity Bill=1282.84 Rupees

Write a C program to print 1 to 10 numbers using the while loop

You need to create a C program to print 1 to 10 numbers using the while loop

• Create a variable for the loop iteration
• Use increment operator in while loop

1 2 3 4 5 6 7 8 9 10

• C Exercises Categories
• C Top Exercises
• C Decision Making

• C Programming Tutorial
• C - Overview
• C - Features
• C - History
• C - Environment Setup
• C - Program Structure
• C - Hello World
• C - Compilation Process
• C - Comments
• C - Keywords
• C - Identifiers
• C - User Input
• C - Basic Syntax
• C - Data Types
• C - Variables
• C - Integer Promotions
• C - Type Conversion
• C - Constants
• C - Literals
• C - Escape sequences
• C - Format Specifiers
• C - Storage Classes
• C - Operators
• C - Decision Making
• C - if statement
• C - if...else statement
• C - nested if statements
• C - switch statement
• C - nested switch statements
• C - While loop
• C - For loop
• C - Do...while loop
• C - Nested loop
• C - Infinite loop
• C - Break Statement
• C - Continue Statement
• C - goto Statement
• C - Functions
• C - Main Functions
• C - Return Statement
• C - Recursion
• C - Scope Rules
• C - Properties of Array
• C - Multi-Dimensional Arrays
• C - Passing Arrays to Function
• C - Return Array from Function
• C - Variable Length Arrays
• C - Pointers
• C - Pointer Arithmetics
• C - Passing Pointers to Functions
• C - Strings
• C - Array of Strings
• C - Structures
• C - Structures and Functions
• C - Arrays of Structures
• C - Pointers to Structures
• C - Self-Referential Structures
• C - Nested Structures
• C - Bit Fields
• C - Typedef
• C - Input & Output
• C - File I/O
• C - Preprocessors
• C - Header Files
• C - Type Casting
• C - Error Handling
• C - Variable Arguments
• C - Memory Management
• C - Command Line Arguments
• C Programming Resources
• C - Questions & Answers
• C - Quick Guide
• C - Useful Resources
• C - Discussion
• Selected Reading
• UPSC IAS Exams Notes
• Developer's Best Practices
• Questions and Answers
• Effective Resume Writing
• HR Interview Questions
• Computer Glossary

Assignment Operators in C

In C, the assignment operator stores a certain value in an already declared variable. A variable in C can be assigned the value in the form of a literal, another variable or an expression. The value to be assigned forms the right hand operand, whereas the variable to be assigned should be the operand to the left of = symbol, which is defined as a simple assignment operator in C. In addition, C has several augmented assignment operators.

The following table lists the assignment operators supported by the C language −

Simple assignment operator (=)

The = operator is the most frequently used operator in C. As per ANSI C standard, all the variables must be declared in the beginning. Variable declaration after the first processing statement is not allowed. You can declare a variable to be assigned a value later in the code, or you can initialize it at the time of declaration.

You can use a literal, another variable or an expression in the assignment statement.

Once a variable of a certain type is declared, it cannot be assigned a value of any other type. In such a case the C compiler reports a type mismatch error.

In C, the expressions that refer to a memory location are called "lvalue" expressions. A lvalue may appear as either the left-hand or right-hand side of an assignment.

On the other hand, the term rvalue refers to a data value that is stored at some address in memory. A rvalue is an expression that cannot have a value assigned to it which means an rvalue may appear on the right-hand side but not on the left-hand side of an assignment.

Variables are lvalues and so they may appear on the left-hand side of an assignment. Numeric literals are rvalues and so they may not be assigned and cannot appear on the left-hand side. Take a look at the following valid and invalid statements −

Augmented assignment operators

In addition to the = operator, C allows you to combine arithmetic and bitwise operators with the = symbol to form augmented or compound assignment operator. The augmented operators offer a convenient shortcut for combining arithmetic or bitwise operation with assignment.

For example, the expression a+=b has the same effect of performing a+b first and then assigning the result back to the variable a.

Similarly, the expression a<<=b has the same effect of performing a<<b first and then assigning the result back to the variable a.

Here is a C program that demonstrates the use of assignment operators in C:

When you compile and execute the above program, it produces the following result −

C Data Types

• C Operators
• C Input and Output
• C Control Flow
• C Functions
• C Preprocessors

C File Handling

• C Cheatsheet

C Interview Questions

C programming language tutorial.

• C Language Introduction
• Features of C Programming Language
• C Programming Language Standard
• C Hello World Program
• Compiling a C Program: Behind the Scenes
• Tokens in C
• Keywords in C

C Variables and Constants

• C Variables
• Constants in C
• Const Qualifier in C
• Different ways to declare variable as constant in C
• Scope rules in C
• Internal Linkage and External Linkage in C
• Global Variables in C
• Data Types in C
• Literals in C
• Escape Sequence in C
• Integer Promotions in C
• Character Arithmetic in C
• Type Conversion in C

C Input/Output

• Basic Input and Output in C
• Format Specifiers in C
• printf in C
• Scansets in C
• Formatted and Unformatted Input/Output functions in C with Examples
• Operators in C
• Arithmetic Operators in C
• Unary operators in C
• Relational Operators in C
• Bitwise Operators in C
• C Logical Operators
• Assignment Operators in C
• Increment and Decrement Operators in C
• Conditional or Ternary Operator (?:) in C
• sizeof operator in C
• Operator Precedence and Associativity in C

C Control Statements Decision-Making

• Decision Making in C (if , if..else, Nested if, if-else-if )
• C - if Statement
• C if...else Statement
• C if else if ladder
• Switch Statement in C
• Using Range in switch Case in C
• while loop in C
• do...while Loop in C
• For Versus While
• Continue Statement in C
• Break Statement in C
• goto Statement in C
• User-Defined Function in C
• Parameter Passing Techniques in C
• Function Prototype in C
• How can I return multiple values from a function?
• main Function in C
• Implicit return type int in C
• Callbacks in C
• Nested functions in C
• Variadic functions in C
• _Noreturn function specifier in C
• Predefined Identifier __func__ in C
• C Library math.h Functions

C Arrays & Strings

• Properties of Array in C
• Multidimensional Arrays in C
• Initialization of Multidimensional Array in C
• Pass Array to Functions in C
• How to pass a 2D array as a parameter in C?
• What are the data types for which it is not possible to create an array?
• How to pass an array by value in C ?
• Strings in C
• Array of Strings in C
• What is the difference between single quoted and double quoted declaration of char array?
• C String Functions
• Pointer Arithmetics in C with Examples
• C - Pointer to Pointer (Double Pointer)
• Function Pointer in C
• How to declare a pointer to a function?
• Pointer to an Array | Array Pointer
• Difference between constant pointer, pointers to constant, and constant pointers to constants
• Pointer vs Array in C
• Dangling, Void , Null and Wild Pointers in C
• Near, Far and Huge Pointers in C
• restrict keyword in C

C User-Defined Data Types

• C Structures
• dot (.) Operator in C
• Structure Member Alignment, Padding and Data Packing
• Flexible Array Members in a structure in C
• Bit Fields in C
• Difference Between Structure and Union in C
• Anonymous Union and Structure in C
• Enumeration (or enum) in C

C Storage Classes

• Storage Classes in C
• extern Keyword in C
• Static Variables in C
• Initialization of static variables in C
• Static functions in C
• Understanding "volatile" qualifier in C | Set 2 (Examples)
• Understanding "register" keyword in C

C Memory Management

• Memory Layout of C Programs
• Dynamic Memory Allocation in C using malloc(), calloc(), free() and realloc()
• Difference Between malloc() and calloc() with Examples
• What is Memory Leak? How can we avoid?
• Dynamic Array in C
• How to dynamically allocate a 2D array in C?
• Dynamically Growing Array in C

C Preprocessor

• C Preprocessor Directives
• How a Preprocessor works in C?
• Header Files in C
• What’s difference between header files "stdio.h" and "stdlib.h" ?
• How to write your own header file in C?
• Macros and its types in C
• Interesting Facts about Macros and Preprocessors in C
• # and ## Operators in C
• How to print a variable name in C?
• Multiline macros in C
• Variable length arguments for Macros
• Branch prediction macros in GCC
• typedef versus #define in C
• Difference between #define and const in C?
• Basics of File Handling in C
• C fopen() function with Examples
• EOF, getc() and feof() in C
• fgets() and gets() in C language
• fseek() vs rewind() in C
• What is return type of getchar(), fgetc() and getc() ?
• Read/Write Structure From/to a File in C
• C Program to print contents of file
• C program to delete a file
• C Program to merge contents of two files into a third file
• What is the difference between printf, sprintf and fprintf?
• Difference between getc(), getchar(), getch() and getche()

Miscellaneous

• time.h header file in C with Examples
• Input-output system calls in C | Create, Open, Close, Read, Write
• Signals in C language
• Program error signals
• Socket Programming in C
• _Generics Keyword in C
• Multithreading in C
• C Programming Interview Questions (2024)
• Commonly Asked C Programming Interview Questions | Set 1
• Commonly Asked C Programming Interview Questions | Set 2
• Commonly Asked C Programming Interview Questions | Set 3

In this C Tutorial , you’ll learn all C programming basic to advanced concepts like variables, arrays, pointers, strings, loops, etc. This C Programming Tutorial is designed for both beginners as well as experienced professionals, who’re looking to learn and enhance their knowledge of the C programming language.

C is a general-purpose, procedural, high-level programming language used in the development of computer software and applications, system programming, games, and more.

• C language was developed by Dennis M. Ritchie at the Bell Telephone Laboratories in 1972 .
• It is a powerful and flexible language which was first developed for the programming of the UNIX operating System .
• C is one of the most widely used programming languages.

C programming language is known for its simplicity and efficiency. It is the best choice to start with programming as it gives you a foundational understanding of programming.

Print Hello World using C Programming

“Give this C code a try, and here’s a fun challenge: print ‘Hello World’ along with your name!”

Getting Started With C Programming Tutorial

Start your coding adventure with our free C Tutorial. A perfect C programming tutorial for beginners and advanced coders alike, this tutorial is your key to unlocking the magic of C programming. With clear explanations and fun examples.

C Arrays & Strings

C error handling.

• Setting Up C Development Environment
• C Identifiers
• Different Ways to Declare Variable as Constant in C
• Scope Rules in C
• Data Type Modifiers in C

C Input/Output Basic Input and Output in C Format Specifiers in C printf in C scanf in C Scansets in C Formatted and Unformatted Input and Output Functions C Operators

• Unary Operators in C
• Logical Operators in C
• size of Operator in C
• Decision-Making in C
• C if Statement
• C if…else Statement
• C if-else-if Ladder
• Using Range in switch case in C
• while looping in C
• do…while Loop in C
• for versus while Loop
• continue Statement in C
• break Statement in C
• Importance of Function Prototype in C
• Return Multiple Values From a Function
• Implicit Return Type int in C
• Nested Functions in C
• _Noreturn Function Specifier in C
• Maths Functions in C
• Initialization of Multidimensional Arrays in C
• Pass a 2D Array as a Parameter in C
• Data Types for Which Array is Not Possible
• Pass an Array by Value in C
• An Array of Strings in C
• Difference Between Single Quoted and Double Quoted Initialization
• String Functions in C
• Pointer Arithmetics in C
• Pointer to Pointer (Double Pointer) in C
• Declare Function Pointer in C
• Pointer to an Array in C
• Constant Pointer in C
• Dangling, Void, Null and Wild Pointers
• restrict Keyword in C
• Flexible Array Members in a Structure in C
• Initialization of Static Variables in C
• Static Functions in C
• Understanding “volatile” Qualifier in C
• Understanding the “register” Keyword in C
• Dynamic Memory Allocation in C
• Difference Between malloc() and calloc()
• What is a Memory Leak?
• Dynamically Allocate a 2D Array in C
• How a Preprocessor Works in C?
• Difference Between Header Files “stdio.h” and “stdlib.h”
• Write Your Own Header File in C
• Macros and their Types in C
• Interesting Facts About Macros and Preprocessors in C
• Print a Variable Name in C
• Multiline Macros in C
• Variable Length Arguments for Macros
• Branch Prediction Macros in GCC
• Difference Between #define and const in C
• C fopen() Function
• fgets() and gets() in C
• Return Type of getchar(), fgetc() and getc()
• C Program to Print Contents of File
• C Program to Delete a File
• C Program to Merge Contents of Two Files into a Third File
• Difference Between printf, sprintf and fprintf
• Difference Between getc(), getchar(), getch() and getche()
• Error Handling in C
• Using goto for Exception Handling in C
• Error Handling During File Operations in C
• C Program to Handle Divide By Zero and Multiple Exceptions
• Basic C Programs
• Control Flow Programs
• Pattern Printing Programs
• Functions Programs
• Arrays Programs
• Strings Programs
• Conversions Programs
• Pointers Programs
• Structures and Unions Programs
• File I/O Programs
• Date and Time Programs
• More C Programs
• Date and Time in C
• Input-output system calls in C
• Signals in C
• Program Error Signals in C

Top 50 C Programming Interview Questions and Answers Commonly Asked C Programming Interview Questions | Set 1 Commonly Asked C Programming Interview Questions | Set 2 Commonly Asked C Programming Interview Questions | Set 3

Why Learn C?

C programming language is one of the most popular programming language. It is a must learn for software engineering students. C is called the mother of all modern programming languages so learning C will help you to learn other languages easily like Java, C++, C#, Python, etc. C language is faster than other programming languages like Java and Python. It can handle low-level programming and we can compile the C code in a variety of computer platforms.

List of some key advantages of C language :

• Easy to learn.
• Versatile Language, which can be used in both applications and technologies.
• Mid-Level Programming Language.
• Structured Programming Language.

C compiler is a software that translates human-readable C language code into machine code or an intermediate code that can be executed by a computer’s central processing unit (CPU).

There are many C compilers available in the market, such as GNU Compiler Collection (GCC) , Microsoft Visual C++ Compiler , Clang , Intel C++ Compiler , and TinyCC (TCC) .

For this tutorial, we will be using the GNU-based online C compiler provided by GeeksforGeeks which is developed for beginners and is very easy to use compared to other compiler/IDE’s available on the web.

Features of C Language

There are some key features of C language that show the ability and power of C language:

• Simplicity and Efficiency: The simple syntax and structured approach make the C language easy to learn.
• Fast Speed: C is one of the fastest programming language because C is a static programming language, which is faster than dynamic languages like JavaScript and Python. C is also a compiler-based which is the reason for faster code compilation and execution.
• Portable: C provides the feature that you write code once and run it anywhere on any computer. It shows the machine-independent nature of the C language.
• Memory Management: C provides lower level memory management using pointers and functions like realloc(), free(), etc.
• Pointers: C comes with pointers. Through pointers, we can directly access or interact with the memory. We can initialize a pointer as an array, variables, etc.
• Structured Language: C provides the features of structural programming that allows you to code into different parts using functions which can be stored as libraries for reusability.

Applications of C Language

C was used in programs that were used in making operating systems. C was known as a system development language because the code written in C runs as fast as the code written in assembly language.

The use of C is given below:

• Operating Systems
• Language Compilers
• Text Editors
• Print Spoolers
• Network Drivers
• Modern Programs
• Language Interpreters

FAQs on C Language

Q1. how to learn c easily.

Answer: 

The first steps towards learning C or any language are to write a hello world program. It gives the understanding of how to write and execute a code. After this, learn the following: Variables Operators Conditionals Loops and Errors Arrays and Strings  Pointers and Memory Functions Structures Recursions 

Q2. Difference between C and C++?

 q3. is c easy to learn for beginners.

While C is one of the easy languages, it is still a good first language choice to start with because almost all programming languages are implemented in it. It means that once you learn C language, it’ll be easy to learn more languages like C++, Java, and C#.

Q4. Why should we learn C first rather than C++?

C is a ‘ mother of all languages .’ It provides a solid understanding of fundamental programming concepts and is considered easier to grasp. C offers versatile applications, from software development to game programming, making it an excellent choice for building a strong programming foundation.

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