\providecommand{\ntables}{7}\providecommand{\algatables}{\StrLeft{ LSfminbnd posik noiseless}{\ntables}}\providecommand{\algbtables}{\StrLeft{ LSstep posik noiseless}{\ntables}}
\begin{tabularx}{1.0\textwidth}{@{}c@{}|*{5}{@{}r@{}X@{}}|@{}r@{}@{}l@{}}
\#FEs/D & \multicolumn{2}{@{}c@{}}{0.5} & \multicolumn{2}{@{}c@{}}{1.2} & \multicolumn{2}{@{}c@{}}{3} & \multicolumn{2}{@{}c@{}}{10} & \multicolumn{2}{@{}c@{}}{50} & \multicolumn{2}{@{}l@{}}{\#succ}\\\hline
\textbf{f12} & \multicolumn{2}{@{}c@{}}{\textit{2.5e+8}:54 \quad} & \multicolumn{2}{@{}c@{}}{\textit{1.6e+8}:218 \quad} & \multicolumn{2}{@{}c@{}}{\textit{1.0e+8}:284 \quad} & \multicolumn{2}{@{}c@{}}{\textit{1.0e+7}:424 \quad} & \multicolumn{2}{@{}c@{}|}{\textit{4.0e+1}:2479 } & 15 & /15\\
\algatables\hspace*{\fill} & \textbf{12} & \textbf{}\mbox{\tiny (3)}$^{\star4}$ & \textbf{3} & \textbf{.7}\mbox{\tiny (2)}$^{\star4}$ & \textbf{3} & \textbf{.4}\mbox{\tiny (0.9)}$^{\star4}$ & \textbf{3} & \textbf{.2}\mbox{\tiny (0.5)}$^{\star4}$ & 42 & \mbox{\tiny (0.2)} & 12 & /15\\
\algbtables\hspace*{\fill} & 38 & \mbox{\tiny (16)} & 12 & \mbox{\tiny (3)} & 11 & \mbox{\tiny (3)} & 14 & \mbox{\tiny (2)} & \textbf{32} & \textbf{}\mbox{\tiny (3)} & 13 & /15
\end{tabularx}