\documentclass[a4paper,11pt]{article}
\setlength{\headheight}{14.5pt}
\addtolength{\topmargin}{-2.5pt}

% Language and encoding settings
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[french]{babel}

% Set size and margins
\usepackage[a4paper,top=2cm,bottom=2cm,left=3cm,right=3cm,marginparwidth=1.75cm]{geometry}

% Useful packages
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage[export]{adjustbox}
\usepackage{verbatim}
\usepackage{parskip}
% \usepackage{svg}
\usepackage{pdfpages}

% Titling
\usepackage{titling}
  % \renewcommand\maketitlehooka{\null\vfill}
  \renewcommand\maketitlehookb{\vfill\null}

% Enable links
% \usepackage{bookmark}
%   \hypersetup{urlcolor=white}
\usepackage[colorlinks=true,allcolors=black]{hyperref}
  \hypersetup{urlcolor=red}

% Code style
\usepackage{xcolor}
\usepackage{listings}
  \definecolor{codegreen}{rgb}{0,0.6,0}
  \definecolor{codegray}{rgb}{0.5,0.5,0.5}
  \definecolor{codepurple}{rgb}{0.58,0,0.82}
  \definecolor{backcolour}{rgb}{0.95,0.95,0.92}
  \lstdefinestyle{mystyle}{
    backgroundcolor=\color{backcolour},   
    commentstyle=\color{codegreen},
    keywordstyle=\color{magenta},
    numberstyle=\tiny\color{codegray},
    stringstyle=\color{codepurple},
    basicstyle=\ttfamily\footnotesize,
    breakatwhitespace=false,         
    breaklines=true,                 
    captionpos=b,                    
    keepspaces=true,                 
    numbers=left,                    
    numbersep=5pt,                  
    showspaces=false,                
    showstringspaces=false,
    showtabs=false,                  
    tabsize=2
  }
  \lstset{style=mystyle}

% Multifiles
\usepackage[subpreambles=true]{standalone}
\usepackage{import}

% Paging
\usepackage{fancyhdr}
  \pagestyle{fancy}
  \fancyhead[L]{SAE 2.02}
  \fancyhead[C]{Exploration algorithmique d'un problème}
  \fancyhead[R]{2023}
  \fancyfoot[L]{\bsc{Agostinho} Alexandre}
  \fancyfoot[C]{\thepage}
  \fancyfoot[R]{\leftmark}
  \renewcommand{\headrulewidth}{0.4pt}
  \renewcommand{\footrulewidth}{0.4pt}

% Title
\title{%
  \begin{minipage}
    \linewidth%
    \centering\bfseries
    \includegraphics[width=0.5\linewidth,valign=c]{images/IUT_Clt.png}
    \hskip50pt
    \includegraphics[width=0.25\linewidth,valign=c]{images/logo-dep-inf.pdf}\\[6ex]
    \vskip140pt
    SAE 2.02
    \vskip10pt
    \large Exploration algorithmique d’un problème
  \end{minipage}
}
\date{\today}
\author{\bsc{Agostinho} Alexandre}


\begin{document}

  % Title page
  \begin{titlingpage}
    \maketitle
  \end{titlingpage}
  \newpage

  % Table of contents page
  \tableofcontents
  \newpage

  % Other pages (sections)
  \import{sections/}{partie1}
  \newpage

  \import{sections/}{partie2}
  \newpage

\end{document}