fixed box size in dalek example

doc/report/dalek.tex

@@ -379,7 +379,7 @@ Considering the position of the 5 Daleks, we can model the prolem as the followi
 
 \begin{table}[]
     \small
-    \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|l|l|l|l|l|}
+    \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|l|l|l|l|p{1cm}|}
     \hline
     Sit'    & $D_1$ & $D_2$ & $D_3$ & $D_4$ & $D_5$ & $U_{12}$  & $U_{13}$  & $U_{14}$  & $U_{23}$  & $U_{25}$  & $U_{34}$  & $U_{35}$  & $U_{45}$  & $U_g$\\ \hline
     0       & N     & N     &  N    & N     &   N   & 10        &5          & 5         &5          &5          &1          &1          &   1       &  10+5+5 +5+5+ 1+1+1 =33  \\ \hline