\documentclass[11pt,a4paper]{article}
\usepackage[margin=2.5cm]{geometry}
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\title{Data Structures and Algorithms\\Assignment 9 -- Answer Sheet}
\author{First name Last name\\Matriculation number:}
\date{}

\begin{document}
\maketitle

\section*{Exercise 1: Hashing}
\subsection*{1)}
\begin{center}
\begin{tabular}{|c|c|c|c|c|c|c|}
\hline
0 & 1 & 2 & 3 & 4 & 5 & 6 \\
\hline
& & & & & & \\
\hline
\end{tabular}
\end{center}

Additional notes:

\subsection*{2)}
Write your answer here.

\section*{Exercise 2: Breadth-first search}
\subsection*{1)}
Write your answer here.

\subsection*{2)}
Write your answer here.

\end{document}