diff --git a/rapport/presentation.tex b/rapport/presentation.tex
index c9c566579f60628a7b574c5f28a680c13811516f..c03958d98b1fa03987e118a63fc3cc8396062879 100644
--- a/rapport/presentation.tex
+++ b/rapport/presentation.tex
@@ -215,37 +215,24 @@
 \begin{frame}
 \frametitle{Comparaison des méthodes}
     \begin{exampleblock}{Exemple~: berlin52 (52 points, valeur optimale à 7542)}
-    
-    \begin{multicols}{2}
-    
-    \raggedcolumns
-     \begin{center}
-   \includegraphics[width=4cm]{../images/00_APPROX_berlin52_approx2.png}
-  
-   2-approximation (10114)
-   
-   \ds
-                
+        \begin{figure}
+            \centering
+            \subfloat[2-approximation (10114)]{
+                \includegraphics[width=2.5cm]{../images/00_APPROX_berlin52_approx2.png}
+            }
+            \subfloat[2-approx + 2-OPT (7755)]{
+                \includegraphics[width=2.5cm]{../images/00_APPROX_berlin52_approx2_2opt.png}
+            }
 
-    \includegraphics[width=4cm]{../images/00_APPROX_berlin52_glouton.png}
+            
+            \subfloat[glouton (9951)]{
+                \includegraphics[width=2.5cm]{../images/00_APPROX_berlin52_glouton.png}
+            }
+            \subfloat[glouton + 2-OPT (7657)]{
+                \includegraphics[width=2.5cm]{../images/00_APPROX_berlin52_glouton_2opt.png}
+            }
+        \end{figure}
     
-     glouton (9951)
-     
-     \end{center}
-     
-     \columnbreak
- \begin{center}
-\includegraphics[width=4cm]{../images/00_APPROX_berlin52_approx2_2opt.png}
-                
-2-approx + 2-OPT (7755)
-
-\ds
-
- \includegraphics[width=4cm]{../images/00_APPROX_berlin52_glouton_2opt.png}
-                
-           glouton + 2-OPT(7657)
-            \end{center}
-        \end{multicols}
     \end{exampleblock}
 \end{frame}