Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Hello, C++ programming
The source code starter file is included as an attachment
The file starts with this string as the input to your encryption
LLSNEEIRUIGNUL-CHXUADUPUGD-RTYI61IE-GDD5E0-607325-8576A598DFJ-EH8IKD7E037FJKE87--54625B6870-FJE941597---FHE7FHJ8KEN436-471369073C8767DFE-7KO8FLKE6895-8934
When properly decoded, the answer will describe how might you feel after you get this encyption scheme working
Here is a list of steps needed to unencrypt your passcode, which is also found in the source code file:
- Create an empty stack
- The first 15 characters of the string get pushed into the stack in order (LLSNEEIRUIGNUL-)
- Create an empty queue
- The next 16 characters of the string get pushed into the queue in order (CHXUADUPUGD-RTYI)
- Create an empty deque
- For the remaining characters of the string in order (61IE-GDD5E0-607325-8576A598DFJ...) do the following conditionally:
- 1 = Pop the stack
- 2 = Pop the queue
- 3 = Pop the front of the deque
- 4 = Pop the back of the deque
- 5 = Move the top element of the stack to the back of queue
- 6 = Move the front element of the queue to the top of stack
- 7 = Move the top element of the stack to the front of deque
- 8 = Move the front element of the queue to the front of deque
- Anything else - Do nothing and move on
- NOTE: The term MOVE is not the same thing as COPY
- The deque will now have the secret phrase in it, listed from front to back, so print it out
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