Homework 7.

20 points total.  Due Oct 17 by 11:59pm.

Do each of the following problems, leaving the complete .cpp files
in your ~/handin/ directory.

Grading... 
* If one of the problems correct, you get at least 12/20
* If two of the problems correct, you get at least 16/20

(1) 
File name: countVowels.cpp

Task: Program should ask the user to type a word, count how many
vowels are in the word, and output that to the user.

Hints:
* To count the vowels you will need to iterate through each 
character in a string.  If you have a string declared as msg, 
you iterate through it like this ...
for(int i=0; i < msg.size(); i++) {
  // code here... look at msg[i]
}
* Make sure to include both upper and lower case.  

Correct working program so you can see how it works:
~jkinne/public_html/cs151-f2013/code/countVowels


(2)
File name: largeX.cpp

Task: Draw a large X out of characters.  Start by copying the file
~jkinne/public_html/cs151-f2013/code/largeX.cpp into your 
handin directory.  That already draws the top of the X.  Add 
code to the X function to draw the middle * and the bottom
half of the X.

Hints: copy the for(row=0;...) loop, including the body of 
the loop, and paste it after the comment bottom upside-down V.
Then make changes to have the loop draw in the reverse order - instead
of drawing increasingly more spaces before the first *, make it 
go the other way - drawing increasingly fewer spaces before the first
*.

Correct working program:
~jkinne/public_html/cs151-f2013/largeX


(3)
File name: ceasarBetter.cpp

Task: Modify the caesarBetter cipher program so that it does not encode
vowels.  For example, hello, with password 3, would be encoded
as keooo.  Start by copying the file 
~jkinne/public_html/cs151-f2013/code/caesarBetter.cpp into your 
handin directory.  

Hints: You only need to make a change in the caesarEncode function.
Add an if condition that tests if the letter being looked at is a 
vowel.

Correct working program:
~jkinne/public_html/cs151-f2013/caesarBetter


(4) Extra Credit
File name: mycaesar.cpp

Task: Make the encryption better in some other way.  Have fun and see 
what you can do...