\documentclass[12pt,a4paper]{article}
\usepackage{amsmath,amsfonts,amssymb}
\usepackage{hyperref}
\usepackage{enumerate}
\usepackage{graphicx}
\usepackage{float}
\usepackage{tikz}
\usepackage{fullpage}
\tikzstyle{every node}=[circle, draw, fill=black!50,
	                        inner sep=0pt, minimum width=4pt]

\title{{\bf Graph Theory:}\\
Tutorial 3}
\author{<NAME> \\
	<NAME> \\
	<NAME>}
\newcommand{\q}[1]{
\section*{#1}
\input{#1.tex}
}
\begin{document}
\maketitle
\q{5.4}

\q{5.9}

\q{5.10}

\q{5.12}

\q{6.8}

\q{6.11}

\q{7.1}

\q{7.5}

\q{7.9}

\q{7.10}

\input{bib.tex}

\end{document}
