\begin{figure}[htp]
    $
    \begin{array}{c}
    \includegraphics[width=5cm]{pics/adaToyExample.eps}
    \\
    \includegraphics[width=8cm]{pics/adaRound1.eps}
    \\
    \includegraphics[width=10cm]{pics/adaRound2.eps}
    \end{array}
    $
    \caption{tsourekia}
    \label{adaExample1}
    \end{figure}