\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Item  & front\index{Deque!front}()
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Returns the head of the \Deque\ without removing it. $O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
void  & insert\index{Deque!insert}(Item\& e) = 0;
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Inserts {\em e} at the front of the list if a \Stack\ is referenced ($O(1)$)
 and at the end of the list if a \Queue\ is ($O(n)$).\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Item  & get\index{Deque!get}()
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Removes the element at the front of the list and returns it. $O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Bool  & emptyQ\index{Deque!emptyQ}()
\end{tabular}\\
 
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Is the \Deque\ empty? $O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Bool  & sortedQ\index{Deque!sortedQ}() const
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Return FALSE.  $O(1)$.\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
void  & clear\index{Deque!clear}()
\end{tabular}\\
 
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Remove all the elements from the \Deque. $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
void  & display\index{Deque!display}()
\end{tabular}\\
 
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Produce a human-readable display of the data 
structure. $O(n)$ \end{minipage}
\end{minipage}
\vspace{0.2in}