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+#+TITLE: Assignment Three
+#+AUTHOR: Logan Hunt
+#+STARTUP: entitiespretty fold inlineimages
+#+LATEX_HEADER: \notindent \notga \usepackage{ dsfont } \usepackage{amsmath}
+#+LATEX: \setlength\parindent{0pt}
+#+OPTIONS: toc:nil
+
+* Question One
+\begin{verbatim}
+<void> <id, cube> <(> <float> <id, y> <)> <{>
+  <if> <(> <id, y> <comparison, >> <number, 3.14159> <)> \\
+      <return> <id, y> <mult_op> <id, y> <mult_op> <id, y>
+  <return> <number, -1>
+<}>
+\end{verbatim}
+
+* Question Two
+#+attr_latex: :width 250px
+[[./2.png]]
+
+The first buffer is filled twice. The second is filled once, and the last contains three elements.
+* Question Three
+Strings starting and ending with "x" with any number of x or y's in between.
+
+* Question Four
+** a
+\begin{verbatim}
+col(o|ou)r
+\end{verbatim}
+** b
+\begin{verbatim}
+m(o|u)m
+\end{verbatim}
+** c
+\begin{verbatim}
+analy(z|s)e
+\end{verbatim}
+
+* Question Five
+** a
+1. bbbaa
+2. bbbcc
+3. bbbac
+4. bbbca
+** b
+1. bbb
+2. aa
+3. cc
+4. ac
+5. ca
+** c
+1. bbb
+2. acac
+** d
+1. bbbacac
+
+* Question Six
+** a
+\begin{verbatim}
+In [1]: ["aggie"[0:n] for n in range(0, len("aggie")+1)]
+Out[1]: ['', 'a', 'ag', 'agg', 'aggi', 'aggie']
+\end{verbatim}
+
+** b
+\begin{verbatim}
+In [3]: ["aggie"[n:len("aggie")] for n in range(0, len("aggie")+1)]
+Out[3]: ['aggie', 'ggie', 'gie', 'ie', 'e', '']
+\end{verbatim}
+
+** c
+\begin{verbatim}
+In [4]: ["aggie"[0:n] for n in range(1, len("aggie"))]
+Out[4]: ['a', 'ag', 'agg', 'aggi']
+\end{verbatim}
+
+** d
+\begin{verbatim}
+In [8]: def subs(s):
+    ...:     proper_substrings = set()
+    ...:     for i in range(len(s)+1):
+    ...:         for j in range(len(s)+1):
+    ...:             if (i <= j):
+    ...:                 sub = s[i:j]
+    ...:                 if (sub != "" and sub != s):
+    ...:                     proper_substrings.add(sub)
+    ...:     return proper_substrings
+    ...:
+
+In [9]: subs("aggie")
+Out[9]:
+{'a',
+ 'ag',
+ 'agg',
+ 'aggi',
+ 'e',
+ 'g',
+ 'gg',
+ 'ggi',
+ 'ggie',
+ 'gi',
+ 'gie',
+ 'i',
+ 'ie'}
+\end{verbatim}
+
+* Question Seven
+\begin{verbatim}
+(u|U)(n|N)(i|I)(o|O)(n|N)
+\end{verbatim}
+
+* Question Eight
+$\textdollar([0-9]|[0-9]^2|[0-9]^3)(,[0-9]^3)^*.[0-9][0-9]$
+
+* Question Nine
+nonzeroDigit \Rightarrow 1|2|3|4|5|6|7|8|9|A|B|C|D|E|F
+
+hex \Rightarrow nonzeroDigit^{+}(0|nonzeroDigit)^{*}
+
+* Question Ten
+** a
+\begin{verbatim}
+(0011)*|(1100)*
+\end{verbatim}
+** b
+[[./10b.png]]
+
+\begin{verbatim}
+((00)|(0(11)*0?))|((11)|(1(00)*1?))
+\end{verbatim}
+** c
+\begin{verbatim}
+a?b?c?d?
+\end{verbatim}
+
+* Question Eleven
+** a
+\begin{verbatim}
+(\t| )+
+\end{verbatim}
+** b
+\begin{verbatim}
+(/\*)[^(*/)]*(\*/)
+\end{verbatim}
+** c
+\begin{verbatim}
+"[^"]*"
+\end{verbatim}
+
+* Question Twelve
+
+nonVowelPart \Rightarrow [\textasciicircum aeiou]^{*}
+
+aPart \Rightarrow a^{+}[\textasciicircum eiou]^{*}
+
+ePart \Rightarrow e^{+}[\textasciicircum aiou]^{*}
+
+iPart \Rightarrow i^{+}[\textasciicircum aeou]^{*}
+
+oPart \Rightarrow o^{+}[\textasciicircum aeiu]^{*}
+
+uPart \Rightarrow u^{+} [\textasciicircum aeio]^{*}
+
+str \Rightarrow (nonVowelPart)(aPart)(ePart)(iPart)(oPart)(uPart)
+
+