 Exploiting tough connection of the problem with the geometric Hitting Set problem, an \left(50+52\frac{12{13}}+\varepsilon\right)-approximate O\left( %DIFDELCMD < \left(%%% |E|^2+\frac{|E|\log|E|{\varepsilon^2}+\log|E|{\varepsilon^3}}  \right) |E|^2\log |E|%DIFDELCMD < \right)%%% -time and O\left( \frac{|E|^2\log|E|{\varepsilon}}  \right)-space algorithm is given based on the modified Agarwal-Pan algorithm.
<fluency>  Exploiting tough connection of the problem with the geometric Hitting Set problem, an \left(50+52\frac{12{13}}+\varepsilon\right)-approximate O\left( %DIFDELCMD < \left(%%% |E|^2+\frac{|E|\log|E|{\varepsilon^2}+\log|E|{\varepsilon^3}}  \right) |E|^2\log |E|%DIFDELCMD < \right)%%% -time and O\left( \frac{|E|^2\log|E|{\varepsilon}}  \right)-space algorithm is given based on the modified Agarwal-Pan algorithm.
 Exploiting tough connection of the problem with the geometric Hitting Set problem, an \left(50+52\frac{12{13}}+\varepsilon\right)-approximate O\left( %DIFDELCMD < \left(%%% {\varepsilon^2}+\log|E|{\varepsilon^3}} \right) |E|^2\log |E|%DIFDELCMD < \right)%%% -time and O\left( \frac{|E|^2\log|E|{\varepsilon}} \right)-space algorithm is given based on the modified Agarwal-Pan algorithm.