C-Projects

Beginner friendly small C Projects for study purposes.

1. Simple C Questions

• Area and Circumference of a Circle
• Print Ascii Value of the Character
• Area of Triangle
• Convert a Person’s Name in Abbreviated
• Simple Interest
• Gross Salary of an Employee
• Percentage of 5 Subjects
• Converting Temperature Celsius into Fahrenheit
• The Display Size of the Different Data Type
• Factorial of a Given Number
• Read Integer (N) and Print the First Three Powers (N^1, N^2, N^3)
• Area of a Circle
• LCM of Two Numbers
• GCD of Two Numbers

1. If/Else Statement

• The Greatest Number Among the Given Three Number
• The Number Is Positive or Negative
• Character Is Vowel or Consonant
• A Character Is an Alphabet or Not
• Uppercase, Lowercase, Special Character, or Digit
• The Number Is Even or Odd
• Leap Year
• The Date Is Correct or Not
• Voting Eligibility Checker
• Find the maximum between two numbers.
• Find the maximum between the three numbers.
• Check whether a number is negative, positive or zero.
• Check whether a number is divisible by 5 and 11 or not.
• Find whether a number is even or odd.
• Check whether a year is a leap year or not.
• Check whether a character is an alphabet or not.
• Input any alphabet and check whether it is vowel or consonant.
• Input any character and check whether it is the alphabet, digit or special character.
• Check whether a character is an uppercase or lowercase alphabet.
• Input week number and print weekday.
• Input month number and print number of days in that month.
• Count the total number of notes in a given amount.
• Input angles of a triangle and check whether the triangle is valid or not.
• Input all sides of a triangle and check whether the triangle is valid or not.
• Check whether the triangle is an equilateral, isosceles or scalene triangle.
• Find all roots of a quadratic equation.
• Calculate profit or loss.

1. Loops
2. While Loop or While-Do Loop Questions

• Reverse A given Number
• Find Number Is Armstrong Or Not
• Calculate Sum of Natural Numbers
• Display Fibonacci Series
• Find LCM of two Numbers
• Reverse a Number
• Check Whether a Number is A Palindrome or Not
• Count Number of Digits of an Integer
• Find A Generic Root Of Number
• Print A Calendar Taking Input From User Using Loop
• Number Is Divisible By 11 Using (VEDIC MATH)
• Denomination of an Amount

2. Do-While Loop Questions

Solve the above program using Do-While Loop

3. For Loop Questions

• Generate IP (Internet Protocol) Addresses Using
• Print Multiplication Table Using
• Sort A Float Array In Ascending And Descending Order Using
• Find GCD of two Numbers Using

4. Switch Case

• Temperature Conversion Celsius To Fahrenheit And Vice Versa
• Find The Day
• Calculator
• Find A Grade Of Given Marks or (Find a Grade of Given Marks Using Switch Case)
• Find Radius, Circumference and Volume of Cylinder
• Remove All Vowels From A String
• Print day of week name using switch case.
• Print total number of days in a month using switch case.
• Check whether an alphabet is a vowel or consonant using a switch case.
• Find the maximum between two numbers using the switch case.
• Check whether a number is even or odd using a switch case.
• Check whether a number is positive, negative or zero using a switch case.
• Find roots of a quadratic equation using switch case.
• Create a Simple Calculator using a switch case.

5. Array Questions

• Insert An Element Desired or Specific Position In An Array
• Remove Duplicates Items In An Array
• Delete Element From Array At Desired Or Specific Position
• Print “I AM IDIOT” Instead Of Your Name Using Array
• Check String Is Palindrome Or Not Using For Loop
• Convert All Input String Simultaneously Into Asterisk ( * )
• Read and print elements of the array. – using recursion.
• Print all negative elements in an array.
• Sum of all array elements. – using recursion.
• Find a maximum and minimum element in an array. – using recursion.
• Get the second largest element in an array.
• Count the total number of even and odd elements in an array.
• Count the total number of negative elements in an array.
• Copy all elements from an array to another array.
• Insert an element in an array.
• Delete an element from an array at the specified position.
• Count frequency of each element in an array.
• Print all unique elements in the array.
• Count the total number of duplicate elements in an array.
• Delete all duplicate elements from an array.
• Merge two arrays to the third array.
• Find the reverse of an array.
• Put even and odd elements of an array in two separate arrays.
• Search an element in an array.
• Sort array elements in ascending or descending order.
• Sort even and odd elements of the array separately.
• Left rotate an array.
• Right rotate an array.

6. Matrix Questions

• Add two matrices.
• Subtract two matrices.
• Perform scalar matrix multiplication.
• Multiply two matrices.
• Check whether two matrices are equal or not.
• Sum of the main diagonal elements of a matrix.
• Find the sum of minor diagonal elements of a matrix.
• Find the sum of each row and column of a matrix.
• Interchange diagonals of a matrix.
• The upper triangular matrix.
• Find a lower triangular matrix.
• Sum of the upper triangular matrix.
• Find the sum of a lower triangular matrix.
• The transpose of a matrix.
• Find determinant of a matrix.
• Identity matrix in C.
• Check the sparse matrix.
• Check the symmetric matrix.
• Recommended posts

7. String Questions List

• String Char-Case Change
• A String is Palindrome or Not
• A String Is an Anagram or Not
• Find the length of a string.
• Copy one string to another string.
• Concatenate two strings.
• Compare two strings.
• Convert lowercase string to uppercase.
• Convert uppercase string to lowercase.
• Toggle case of each character of a string.
• Find a total number of alphabets, digits or special character in a string.
• Count the total number of vowels and consonants in a string.
• Count the total number of words in a string.
• Find the reverse of a string.
• Check whether a string is a palindrome or not.
• Reverse order of words in a given string.

8. String Questions: Level Up

• Find the first occurrence of a character in a given string.
• Find the last occurrence of a character in a given string.
• Search all occurrences of a character in a given string.
• Count occurrences of a character in a given string.
• Find the highest frequency character in a string.
• Find the lowest frequency character in a string.
• Count the frequency of each character in a string.
• Remove the first occurrence of a character from a string.
• Remove the last occurrence of a character from a string.
• Delete all occurrences of a character from a string.
• Remove all repeated characters from a given string.
• Replace the first occurrence of a character with another in a string.
• Replace the last occurrence of a character with another in a string.
• Put all occurrences of a character with another in a string.
• Find the first occurrence of a word in a given string.
• Find the last occurrence of a word in a given string.
• Search all occurrences of a word in a given string.
• Count occurrences of a word in a given string.
• Remove the first occurrence of a word from the string.
• Remove the last occurrence of a word in a given string.
• Delete all occurrence of a word in a given string.
• A Trim leading white space characters from a given string.
• Trim trailing white space characters from a given string.
• Trim both leading and trailing white space characters from a given string.
• Remove all extra blank spaces from the given string.

9. Function Questions

• Cube of any number using the function.
• Find diameter, circumference and area of a circle using functions.
• Maximum and minimum between two numbers using functions.
• Check whether a number is even or odd using functions.
• Check whether a number is prime, Armstrong or perfect number using functions.
• Find all prime numbers between the given interval using functions.
• Print all strong numbers between the given interval using functions.
• Armstrong numbers between the given interval using functions.
• Print all perfect numbers between the given interval using functions.
• Find the power of any number using recursion.
• Print all natural numbers between 1 to n using recursion.
• Print all even or odd numbers in a given range using recursion.
• Sum of all natural numbers between 1 to n using recursion.
• Find the sum of all even or odd numbers in a given range using recursion.
• Find reverse of any number using recursion.
• Check whether a number is a palindrome or not using recursion.
• Find the sum of digits of a given number using recursion.
• Find factorial of any number using recursion.
• Generate nth Fibonacci term using recursion.
• Find gcd (HCF) of two numbers using recursion.
• Find lcm of two numbers using recursion.
• Display all array elements using recursion.
• Find the sum of elements of the array using recursion.
• Find maximum and minimum elements in an array using recursion.
• Stricmp() Function (Case In-Sensitive Compare)
• Strncat() Function (String Concatenate)
• Strstr() Function (Sub-String)
• Strlwr() Function (To Lower-Case)
• Strupr() Function (To Upper-Case)
• Strncmp() Compare & Chars
• Strncpy() Copy N Chars
• Strrev() String Reverse
• Strlen() String Length
• Strcat() String Concatenate
• Strcmp() String Compare
• Strcpy() Copy the String

10. Pointer Questions

• Add two numbers using pointers.
• Swap two numbers using pointers.
• Input and print array elements using a pointer.
• Copy one array to another using pointer.
• Swap two arrays using pointers.
• Reverse an array using pointers.
• Search an element in an array using pointers.
• Access two-dimensional array using pointers.
• Add two matrix using pointers.
• Multiply two matrix using pointers.
• Find the length of the string using pointers.
• In short How to Copy one string to another using pointer.
• Concatenate two strings using pointers.
• Compare two strings using pointers.
• Find the reverse of a string using pointers.
• Sort array using pointers.
• Return multiple values from a function using pointers.

11. File Handling

• Create a file and write contents, save and close the file.
• Read file contents and display them on the console.
• Read numbers from a file and write even, odd and prime numbers to separate file.
• Append content to a file.
• Compare two files.
• How to Copy contents from one file to another file.
• Merge two files to the third file.
• Count characters, words and lines in a text file.
• Delete a word from a text file.
• Remove the specific line from a text file.
• Remove empty lines from a text file.
• Find the occurrence of a word in a text file.
• Count occurrences of a word in a text file.
• Count occurrences of all words in a text file.
• Find and replace a word in a text file.
• Replace a specific line in a text file.
• Print source code of the same program.
• Convert uppercase to the lowercase character and vice versa in a text file.
• Find properties of a file using stat() function.
• Check if a file or directory exists.
• Rename a file using rename() function.
• List all files and sub-directories recursively.

12. Sorting

• Bubble Sort in C
• Bucket or Radix Sort in C
• Shell Sort in C
• Merge Sort in C
• Heap Sort in C
• Selection Sort in C
• Insertion Sort in C

13. Searching

• Binary Search in C
• Linear Search in C
• Recursive Binary Search in C

14. Tricky Questions for Expert Only | Legendary level

This is a high-level section for legendary programmers or thinkers, this section can help you to become a pro programmer. In this section, two categories are the number pattern and start pattern. I just keep the pattern programming and number programming separate. All the tricky questions or we can say that number programming or start pattern programming solutions of c programming questions and answers are below.

• Number Series- C Programming Questions and Answers
• Start Pattern Printing- C Programming Questions and Answers
• Puzzles Questions

15. Puzzles Questions

• Print numbers from 1 to n without using a semicolon?
• Sum of two numbers without using any operator
• How to show memory representation of c variables?
• Condition to print “HelloWorld”
• Modify/add only one character and print ‘*’ exactly 20 times
• Sum the digits of a given number in a single statement?