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

\author{Benjamin Bertrand}
\title{}
\date{Février 2023}

\DeclareExerciseCollection[step=3]{banque}
\xsimsetup{collect}

\pagestyle{empty}


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

\printcollection{banque}
\vfill

\printcollection{banque}
\vfill

\end{document}