Due Tuesday Sept 3 by 11:59pm

NAME: 

Collaborator: 


Complete the following.


(1) Copy this file (~jkinne/public_html/cs151-f2013/code/hw3.txt)
    into your ~/handin/ directory.  And	
    fill in your name and collaborators above.

(2) Create an account on scratch.mit.edu, and complete the 
    following program.  When your program is done, click 
    the "Share" button in the upper right hand corner, and 
    copy/paste the URL to your project here.

URL: 

   What the project should do...  The project should have the 
   cat ask for a number.  Save it as a variable x.  Then calculate
   the largest power of 2 that is <= x.  And tell the user that 
   the answer you found is the largest power of 2 <= the number
   they gave you.  If the user enter, 12 you'd tell them 8.
   If they entered 50, you'd tell them 32.

   Hint: Your program will be somewhat similar to the 
   exponentiation program we did in class, but the formula
   will be different.  First figure out how to do it on 
   paper yourself before trying to do it in scratch.  And
   here is how I suggest doing it...  Take your number x 
   that they entered, and (inside of a loop) keep dividing
   by 2 until x becomes less than 2.  While that is happening,
   take another variable, call it z, and let it be 1 before
   the loop starts.  Each time you divide x by 2, multiply
   z by 2.  In the end, z should be the answer.

   Extra: If you finish that easily, then have the cat 
   not only tell the user what the answer is, but which 
   power of 2 it is.  So instead of just 8, it would say 
   "8 which is 2^3".  Instead of 32, it would say 
   "32 which is 2^5".

   Extra: If you get that done, then have the cat do something
   else after it finishes the calculations.  Anything you like,
   have fun!