Q/ Starting with north west corner solution do 1 u-v iteration (transportation algorithm improvement)

\begin{tabular}{|r|r|r|r|r|} \hline wrker/tsk & 1 & 2 & \multicolumn{1}{r|}{3} & 4 \\ \cline { 2 - 5 } & 18 & 8 & 13 & 16 \\ \cline { 2 - 5 } & 15 & 1 & 18 & 14 \\ \hline 3 & 8 & 7 & 1 & 19 \\ \hline 4 & 7 & 17 & 15 & 10 \\ \hline \end{tabular}