Three black boxes

subfigures.tex

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx,url}

\title{Three black boxes}
\author{alek.frohlich }
\date{November 2019}

\begin{document}

\maketitle

\begin{figure}[ht]
\centering
\minipage{0.32\textwidth}
  \includegraphics[width=\linewidth]{dummy.png}
\endminipage\hfill
\minipage{0.32\textwidth}
  \includegraphics[width=\linewidth]{dummy.png}
\endminipage\hfill
\minipage{0.32\textwidth}%
  \includegraphics[width=\linewidth]{dummy.png}
\endminipage
\caption{A typical figure}
\label{fig:exampleFig1}
\end{figure}

\end{document}