\documentclass{article}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\usepackage[french]{babel}
\usepackage[affil-it]{authblk}
\usepackage{fullpage}

\usepackage{amsmath}
\usepackage{amssymb}

\usepackage{biblatex}

% \usepackage[linesnumbered,ruled,vlined]{algorithm2e}
\usepackage{algorithm}
\usepackage{algorithmicx}
\usepackage[noend]{algpseudocode}
\algrenewcommand\alglinenumber[1]{\tiny #1}

\usepackage{etoolbox}

% --- Partage du compteur de lignes entre plusieurs algorithmes
\makeatletter
\newcounter{algoLine}
\renewcommand{\alglinenumber}[1]{\arabic{algoLine}}
\newcommand{\nextalgline}{\stepcounter{algoLine}}
\newcommand{\resetalgline}{\setcounter{algoLine}{1}}
\makeatother

\newtheorem{property}{Property}
\newtheorem{theorem}{Theorem}
\newtheorem{proof}{Proof}

\addbibresource{sources.bib}

\begin{document}

\title{???}
\author{JOLY Amaury  \\ \textbf{Encadrants :} GODARD Emmanuel, TRAVERS Corentin}
\affil{Aix-Marseille Université, Scille}
\date{\today}

\begin{titlepage}
  \maketitle
\end{titlepage}


\section{Introduction}

\subsection{Model}
\input{intro/index.tex}

\subsection{Algorithms}
\input{algo/index.tex}

\subsection{proof}
\input{proof/index.tex}

\printbibliography


\end{document}