Problem:
Question- How can you convert ACSII character to integers, modify the integer, then convert it to the assigned ASCII character in a C program (not C++ or C#).
For example: change the character A (which is stored as A==65) to C (stored as C==67) by adding 2 to A's integer value. I have to write a program that decodes an inputted array of characters (no puncutation) with any size by moving each character in the array back by n spaces in the alphabet. So if n=5, then 'F' become 'A' and 'E' becomes 'Z'.
Please describe the code with the help of comments.