\documentclass[a4paper,10pt]{article}
\usepackage{myXsim}

\author{${author}}
\title{${title} - Exercices}
\date{${date}}

\DeclareExerciseCollection[step=1]{banque}
\xsimsetup{collect}


\begin{document}
\input{exercises.tex}

\printcollection{banque}

\end{document}