Minimal Beamer Code

beamer.tex

\documentclass{beamer}
\usetheme{Madrid}

\title{A quick \LaTeX \space notebook}
\subtitle{For papers and beamers}
\author{Gavin XU}
\institute{Delft University of Technology}
\date{\today}

\begin{document}
\maketitle

\begin{frame}
  Come on!  
\end{frame}
\end{document}