| 1. program to input a string or a char array from the user and then display it - | Code | 
| 2. program to input integer array from user and then display it using for loop - | Code | 
| 3. program to input integer array of size 5 using while loop and then display the integer array using while loop - | Code | 
| 4. program to input an integer array of size 5 from the user and calculate total of the integer array using for loop - | Code | 
| 5. program to input an integer array of marks in 5 subjects and calculate percentage - | Code | 
| 6. program to input a character array from the user and find its length using for loop - | Code | 
| 7. program to input a character array or string from user and find its length using while loop - | Code | 
| 8. program to input a float array from user and display it using for loop - | Code | 
| 9. program to check whether string is palindrome or not - | Code | 
| 10. program to convert a string to upper case without using strupr function - | Code | 
| 11. program to input a string and find number of vowels,consonants,digits and other characters - | Code | 
| 12. program to initialize single dimensional integer array and display the array using for loop - | Code | 
| 13. program to initialize single dimensional char array and display the array using for loop - | Code | 
| 14. program to initialize single dimensional float array and display the array using for loop - | Code | 
| 15. program to find maximum and minimum number in an integer array - | Code | 
| 16. program to input a char array and pass this array to function , function prints the char array - | Code | 
| 17. program to input an integer array and pass this array to function , function prints the integer array - | Code | 
| 18. program to input two strings(char array) and concatenate them using for loop (concatenate means to join the strings) - | Code | 
| 19. program to input a string(char array) and check whether the string is palindrome or not (radar is a palindrome and radaw is not a palindrome) - | Code | 
| 20. program to initialize an array of 10 elements and find smallest even and odd number - | Code | 
| 21. program to input a char array (string) and count number of vowels in the string - | Code | 
| 22. program to input an array of 10 integer elements and calculate largest even and odd number from the array - | Code | 
| 23. program to input a char array (string) and reverse the string without using strrev function- | Code | 
| 24. program to input array of 10 integer elements and find sum of even and odd numbers using for loop - | Code | 
| 25. program to input array of 10 integer elements and find prime numbers from the array (example of arrays and functions )- | Code | 
| 26. program to convert a string to upper case (capital letters) (without using strupr function in string.h) - | Code | 
| 27. program to input a string and convert all lowercase letters to uppercase letters and all uppercase letters to lowercase letters - | Code | 
| 28. program to input a string and replace each space with a hyphen(-) using for loop - | Code | 
| 29. program to input a sentence (char array) and count number of words in it using for loop - | Code | 
| 30. program to input a sentence (char array) and count number of vowels in it using for loop - | Code | 
| 31. program to input a sentence (char array) and count number of vowels and consonants in it using for loop - | Code | 
| 32. program to input a sentence (char array) and remove multiple spaces with a single space - | Code | 
| 33. program to initialize an array of 5 integer elements and reverse the array without using another array - | Code |