\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{f6} & \multicolumn{2}{@{}c@{}}{\textit{6.3e+5}:50 \quad} & \multicolumn{2}{@{}c@{}}{\textit{4.0e+5}:82 \quad} & \multicolumn{2}{@{}c@{}}{\textit{4.0e+4}:127 \quad} & \multicolumn{2}{@{}c@{}}{\textit{4.0e+2}:734 \quad} & \multicolumn{2}{@{}c@{}|}{\textit{6.3e+1}:2121 } & 15 & /15\\
\algatables\hspace*{\fill} & \textbf{6} & \textbf{.8}\mbox{\tiny (2)}$^{\star4}$ & \textbf{5} & \textbf{.5}\mbox{\tiny (2)}$^{\star4}$ & \textbf{6} & \textbf{.1}\mbox{\tiny (1)}$^{\star4}$ & \textbf{8} & \textbf{.4}\mbox{\tiny (5)}$^{\star4}$ & \textbf{24} & \textbf{}\mbox{\tiny (25)}$^{\star4}$ & 15 & /15\\
\algbtables\hspace*{\fill} & 101 & \mbox{\tiny (75)} & 81 & \mbox{\tiny (43)} & 108 & \mbox{\tiny (16)} & 152 & \mbox{\tiny (88)} & 1348 & \mbox{\tiny (3115)} & 2 & /15
\end{tabularx}