Read N characters in to an array . Use functions to do all
problems and pass the address of array to function.

1. Print only the alphabets . If in upper case print in
lower case vice versa.
2. Enter alphanumeric characters and form 2 array alphaets
and digits.Also print the count of each array.
3. Find the count of a certain character.
4. Print the positions where a certain character occured.
5. Print the characters between successive array elements.
6. Find the largest and smallest charcter. How many times
it each one occured.
7. Enter a certain range. Print out the array elements
which occured between these range.
8. Reverse a character array without using another array.
9. Reverse an array region.
10. Replace a the array elements with it next character .
Use a after z.
11. Code the array element with certain character as first
alphabet.
12. Duplicate all the vowels in a character array. What is
the new count.
13. Delete the vowels in a character array. What is the new
array count.
14. Print the count of all characters in the array.

15. Enter n alphabets and store a upto tht
charcter in array.What is the array count?
16. Sort a character array.
17. Merge 2 character arrays largearray,smallarray.
18. Find the pair with largest number of characters in between.
19. Find the numerical value of a charcter array.
20. Store n numeral characters in an arrray. Insert another
numeral character in a certain position.
21. Insert a character in a sorted array.
22. Merge 2 sorted arrays in sorted fashion.
23. Duplicate the least occuring character.
24. Write a menu driven program to circular right/left shift
an array of n elements.
25. Is the character array palindrome? if not make it
palindrome.
26. Concatenate the first n charaters to the end of the string.
27. Print all n group of chracters which are palindrome.
28. Concatneate the reverse of last n characters to the array.