Most Frequent Asked programs/examples in C

C Basics Progrms

• 1. Hello World Program in C
• 2. C program to check whether the given number is positive or negative
• 3. Reverse an input number using recursion
• 4. Program to find greatest of three numbers
• 5. C Program to print Fibonacci series in a given range
• 6. C Program to find factorial of a given number
• 7. Find Prime numbers in a given range
• 8. C Program to check if given number is Armstrong or not
• 9. C Program to check if given number is palindrome or not
• 10. C program to display palindrome numbers in a given range
• 11. C Program to check if number is odd or even
• 12. C Program to find out the ASCII value of a character
• 13. C Program to find the size of int, float, double and char
• 14. C Program to check whether an alphabet is vowel or consonant
• 15. C Program to check leap year



C String Programs

• 1. Program to convert string from upper case to lower case
• 2. Program to convert string from lower case to upper case
• 3. Sort a set of strings in ascending alphabetical order
• 4. Find length of a string without using strlen()
• 5. String concatenation without using strcat
• 6. Reverse a String using recursion

C Array Programs

• 1. Program to sort array in ascending order
• 2. Find largest element of given array
• 3. C program to find sum of array elements
• 4. C Program to find number of elements in an array



C Sorting programs

• 1. Bubble sort program in C
• 2. Insertion sort program in C
• 3. Selection sort program in C
• 4. Quicksort program in C
• 5. Mearge sort program in C



C Pointer programs

• 1. C program to find the largest of three numbers using Pointers
• 2. C program to count vowels and consonants in a String using pointer
• 3. C program to print String using Pointer
• 4. C program to swap two numbers using pointers
• 5. C program to create initialize and access a pointer variable



Number system conversion programs

• 1. Binary to decimal conversion
• 2. C Program to convert Decimal to Binary
• 3. C Program to convert Decimal to Octal
• 4. C Program to convert Octal to Decimal
• 5. C Program to convert Binary to Octal