Dougie Dog has invented an "encryption" technique to keep secrets from
the Ferocious Kittens. Fortunately, cats are extremely intelligent, and have
cracked the simple code:
- Letters are grouped into pairs. Add a space to the end of the string
if necessary to give it an even number of characters (here
"character" means char. - Make an int from each pair by sticking the bits from the first letter
in front of the bits from the second letter. You may assume that we
are using 8-bit ASCII. - XOR the result with 31337.
Decryption is performed with the same steps, but in reverse order.
• Write a program that decrypts the above encrypted message.
(hint: this will be a lot easier if you begin by writing a program to
encrypt values -- you can check each step with "cats" and
"kittens" to make sure you understand the process!)
• You must use a function to split a large integer into two separate
letters. This function may not print anything to the screen.
(hint: how can a function return two values?)
怎么写啊
先考英文，再考编程么？能自己翻译清楚，再提问么？
大哥这是IP lab写不完啦？