C, Firmware or System Software Programming Motivation

  C is just a step up from assembly language, which is practically a hexadecimal human translation of machine code and considered the lowest level programming language. Hence programming, debugging and maintaining C code when applied to embedded software/firmware applications can be a nightmare if not practiced properly. Following industry standard programming exercises, solutions will give you the real development experience for your competitive exams, interviews.

  To whom this webpage is useful?

• You are college fresher and looking for C programming skills for job interviews/written tests.
• You are pursuing an academic course and having a c programming assignment.
• You are an experienced professional looking to freshen up your C programming skills.
• You are a hobbyist trying to learn all emerging C programming real embedded applications.

• Tech Articles
• Online Tests
• Popular

 Exercises and solutions: Functions,Variables,Datatypes,Loops

Read C articles  Test C Skills  Search C Examples

Difficulty Level	Question
Medium	Write a c program function to accept the principal, rate of interest, period of deposit and to calculate the simple interest.
Low	Write a c program function to compute (a+b)^2 where the value of a and b will be provided by the user.
Low	Write a c program function to calculate the sum of two integers where the two integers will be provided by the user.
Medium	Write a c program function to calculate the area of a circle if the radius of the circle is passed to it.
Medium	Write a c program function to accept 2 integers and return the result after adding them and then dividing the result by 2.
Low	Write a c program function to calculate the circumference of a circle if the radius of the circle is passed to it.
Medium	Write a program for illustrating the use of inline function in c programming.
High	Write C function to calculate the factorial of a number and illustrate the use of recursion.
Medium	Write a c program function to accept the temperature in Deg Centigrade and convert it to Fahrenheit.

Medium	Write a program to demonstrate the use of auto/local and global variables in C programming
High	Write a C Program macro to check if a character is alphabetic or not.
Low	Write a C program to return the bigger number between 2 integers using conditional/ternary operator.
Medium	Write a c program function to accept an integer number and return msb last digit of the number.
Medium	Write a program with two files ext1.c and ext2.c to demonstrate the use of extern keyword
Low	Write a c program function to accept an integer number and return lsb first digit of the number.
Medium	Write a C program to check whether year is leap year or not using conditional/ternary operator.

Medium	Write a c program function to calculate the sum of odd integers from 1 to 100.
Medium	Write a C program function to print a half pyramid using *
High	Write a c program function to check a given number is even parity(even no of 1s) or odd parity(odd no of 1s).
High	Write a C program to create a triangle of letter A.
Medium	Write a c program function to find the maximum of three given integers.
High	Write a c program function to create simple calculator using switch case.
Medium	Write a c program function to calculate the sum of even integers from 2 to 100.

 Exercises and solutions: Arrays,Strings,Pointers

Read C articles  Test C Skills  Search C Examples

Difficulty Level	Question
Medium	Write a c program to add two 2-dimensional arrays or 2-D arrays.
Low	Write a C program function to take a character array in array format and return the last character of the array passed to it.
High	Write a C program to find longest sequence of elements in an array.
Medium	Write a C program function to take an integer array in array format and return the sum of all elements in the array.
High	Write a program to accept a two dimensional integer array and return the sum of all elements in the array.

High	Write a c program function that reverses the string passed to it without declaring any new string within the function.
High	Write a C program function to reverse the string passed to it without using the c inbuilt library.
Low	Write a c program function to calculate the number of words present in a string passed to it.
Medium	Write a c program function to return the character written two times in the string passed to it.
Medium	Write a C program to count the number of characters in a string without using the c inbuilt library.
High	Write a C program function to count frequency of each character in a string and return the maximum frequency.
Medium	Write a C program function to take a string as its input and return the first word of the string passed to it.

High	Write a c program function to return the same string after reversing it using pointers
High	Write a function to loop through the strings present in an array of pointers to string
Medium	Write a c program function to swap two integers using pointers.
High	Write a C program function to return the 5th element of an array using pointer to a function.
High	Write a c program function to swap two integers using function pointers.
High	Write a c program function to reverse the string passed to it using pointers and without using the c inbuilt library.
High	Write a c program function to take your name as input using fgets stdin and print the name as output
Medium	Write a c program to accept a string as input and return the number of words present in it using pointers.

 Exercises and solutions: Structures,unions,enums,bit fields

Read articles  Test C Skills  Search C Examples

Difficulty Level	Question
High	Write a program to swap the 4bytes of an integer. If input is provided as 0x12345678 output is generated as 0x78563412.
High	Write a C program function to enter different book information(pages, author, search id) in a school library and search any book using search id and structure arrays.
Medium	Write a function to determine whether the machine is Little Endian or Big Endian.
High	Write a C program function to enter different book information(pages, author, search id) in a school library and display the existing books using structure arrays.
High	Write a C program function to enter different book information(pages, author, search id) in a school library and display the existing books using structure pointers.
Medium	Write a C program function to enter different book information(pages, author, search id) in a school library.
High	Write a C program function to enter different book information(pages, author, search id) in a school library and search any book using search id and structure pointers.

Medium	Write a c program to toggle the second bit of an integer from LSB.
Medium	Write a c program to clear the second bit of an integer from LSB.
High	Write a C program to set the 0th to 3rd bits of an integer.
Medium	Write a c program to find the current day of the week using enum.
High	Write a C program function to swap the nibbles in a byte.
Medium	Write a c program function to set bit 1 for a given number.
High	Write a C program to get the status of nth bit of a number.

 Exercises and solutions: File handling, Data structures, Linked lists

Read C articles  Test C Skills  Search C Examples

Difficulty Level	Question
High	Write a program to read data line by line from a file using fscanf in-built function.
Medium	Write a C program to store data in an internal buffer using sprintf in-built function.

High	Write a c program function to add new nodes at the end of a singly linked list.
High	Write a c singly linked list program to add a node at the beginning of the list.
High	Write a c program function to add new nodes in the middle of a singly linked list.
High	Write a c program function to display all node data present in a singly linked list.

 Articles

 Linux Software

Linux os concepts internals applications in a nutshell

Linux important commands illustrations examples

Shared library development with gcc in linux

Cli development using ipc shared memory shmget

Writing practical makefiles linux examples illustrations

Process practical applications illustration in linux

pthreads practical applications illustration in linux

Process in Linux

 C Programming

Embedded c programming novice to professional in 24 hours

Storage classes in C

C standard library function fgets with example

C programming compiler errors warnings debugging

strcpy strncpy in c example illustration

C programming debugging exercises assignments solutions

Data types in C with examples

State machine implementation in C example

Functions in C examples

How to write makefile in linux for c

Strings in C examples

Pointers in C examples

Memory layout of C program in linux

Structure in C

Union in C

Bit fields in C

Arrays in C

 Search Code Snippets

Search more C examples

Search more C MCQs

 Popular C search examples

function pointer, scanf, do, default, double, goto, union, else, heap overflow, while, auto, stack overflow, signed, inline function, struct, const, unsigned, typedef, 2-D arrays, continue, int, fibonacci, short, break, if, float, state machine, void, dangling pointer, fscanf, long, switch, recursion, factorial, malloc, enum, register, return, 2-dimensional arrays, char, static, volatile, sprintf, case, sizeof, extern, for,

 Popular C search MCQs

function pointer, scanf, do, default, double, goto, union, else, heap overflow, while, auto, stack overflow, signed, inline function, struct, const, unsigned, typedef, 2-D arrays, continue, int, fibonacci, short, break, if, float, state machine, void, dangling pointer, fscanf, long, switch, recursion, factorial, malloc, enum, register, return, 2-dimensional arrays, char, static, volatile, sprintf, case, sizeof, extern, for,