\section{Os Algoritmos}
\label{sec:thealgorithm}

\subsection{Um Algoritmo Baseado em Mem\'oria Principal}

\subsection{Um Algoritmo Baseado em Mem\'oria Externa}
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\begin{figure}
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\centering
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\caption{Main steps of the new algorithm.}
\label{fig:new-algo-main-steps}
\end{figure}

\subsubsection{Segmenta\c{c}\~ao}
\subsubsection{Espalhamento}