Files

1) Make a function that returns true/false depending if the given filename represents an
empty file.
	cout << boolalpha << isEmpty("c:\\Users\\rappleto\movie-of-Gabe.mov") << endl;


2) Make a function that changes a file to have exactly zero bytes.  The file remains, it's just
emptied of all data.  You may assume the file already exists.
	resetFile("c:\\Users\\rappleto\\movie-of-Gabe.mov");



3) Print the last byte of the file.  Only the last byte.  YOU CANNOT READ THE WHOLE FILE!


Recursion (no loops allowed)


1) Does the string contain anything except 'q'?
	nonQ("qqqqqqqqqqqq") is false
	nonQ("qqqqqqqZqqqq") is true
	nonQ("") is false
	nonQ("q") is false
	nonQ("s") is true


2) Return every other letter of the string argument.
	other("aabbccddee")  is "abcde"
	other("123456789") is "13579"
	other("q") is "q"
	other("") is ""

3) Is the string in alphabetic order?  Return true/false
	order("abcd") is true
	order("dcba") is false
	order("aaaaab") is true
	order("abcdefga") is false
	order("") is true
	order("a") is true
	order("dhqz") is true
	order("dgaz") is false

Printing

1) Read a nunber.  Print it with either a leading +, or a leading -.  Zero gets a +.


2) Read a number.  Print it in scientific notation.
	Examples:
	1 -> 1.00000e+00
	314159 -> 3.14159e05