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

\author{Benjamin Bertrand}
\title{Géométrie repérée - Cours}
\date{2022-01-13}

\DeclareExerciseCollection[step=1]{banque}
\xsimsetup{
    collect,
    exercise/within = section,
    exercise/the-counter = \arabic{exercise}. ,
}

\pagestyle{empty}

\begin{document}

\setcounter{section}{1}

\input{exercises.tex}

\printcollection{banque}
\vfill

\printcollection{banque}
\vfill

\end{document}