diff --git a/EXOS/Partiel2020.tex b/EXOS/Partiel2020.tex
index 4b90c64..adf8a70 100644
--- a/EXOS/Partiel2020.tex
+++ b/EXOS/Partiel2020.tex
@@ -6,10 +6,12 @@
 \usepackage[a4paper,hmargin=20mm,vmargin=30mm]{geometry}%\usepackage{fullpage}
 \usepackage{url}
 \usepackage{comment}
-\usepackage{fancyhdr}% fancy header
+\usepackage{fancyhdr}
 \usepackage{adjustbox}
 \usepackage{slashbox}
 %\usepackage{times}
+\usepackage{amsmath}
+\usepackage{amsthm}
 
 
 \usepackage{tikz,pgflibraryarrows,pgffor,pgflibrarysnakes}
@@ -21,51 +23,22 @@
 \usepackage{fancyvrb}
 
 \fancypagestyle{monstyle}{
-%\fancyhead{}
 \renewcommand{\headrulewidth}{1pt}
-%% %\renewcommand{\footrulewidth}{0.4pt}
-
-% \fancyhead[LE]{\slshape \thepage/ \pageref{LastPage}}
-%% \fancyhead[RO]{\slshape \thepage/ \pageref{LastPage}}
-
-
-%\fancyhf{}          
-%\fancyhead[LE]{\slshape LE}
-%\fancyhead[CE]{\slshape CE}
-%\fancyhead[RE]{\slshape RE}
 
 \fancyhead[LO]{\bfseries 2019-2020 BD PLS/SQL\rightmark}   
-%\fancyhead[CO]{\slshape APF}
 \fancyhead[RO]{\bfseries ~\leftmark }
-
-%% %\fancyfoot{}
-% \fancyfoot[LE,RO]{}
- \fancyfoot[CO,CE]{}%\slshape\thepage/\pageref{LastPage}}
-%% %\fancyfoot[LO,RE]{\small\slshape \ddmmyyyydate version du \today}
-
+ \fancyfoot[CO,CE]{}
 }
 
-% \pagestyle{fancy}
-
-\usepackage{amsmath}
-\usepackage{amsthm}
-
-
-
 \theoremstyle{definition}
 \newtheorem{exercice}{Exercice}
 
 \pagestyle{monstyle}
 
-\usepackage{amsmath}
-\usepackage{amsthm}
-
 \newcommand{\code}[1]{\texttt{#1}}
-
 \usepackage{boxedminipage}
 \usepackage{setspace}
 
-
 \newsavebox\svbx
 \newif\ifcache
 \long\def\cache#1{\ \newline
@@ -80,23 +53,16 @@
  \par\smallskip}
 
 
-\cachefalse % version prof
-%\cachetrue % version  etudiant
-
-
+%\cachefalse % version prof
+\cachetrue % version  etudiant
 
 \begin{document}
-
-
 \begin{center}
  NOM : \hfill Partiel \hfill~\\
  PRENOM : \hfill 90 minutes, 90 points \hfill ~\\
  GROUPE : \hfill  Aucun document autoris\'e \hfill~\\
 \end{center}
 
-
-
-
 \begin{exercice}[Curseur (20 points)] \ \\
   \begin{enumerate}
   \item (3 points) Expliquer \`a quoi sert un curseur.