process hierarchy for #include

#include

#include

#include

int main$($void$)\{$

pid$\_$t pid, pid$2,$ pid$3$;

int status, status$2,$ status$3$;

pid $=$ fork$()$;

if $($pid $==0)\{$

pid$2=$ fork$()$;

if $($pid$2==0)\{$

$/*$ Do Computation $*/$

return $0$;

$\}$ else $\{/*$ pid$2>0*/$

pid$3=$ fork$()$;

if $($pid$3==0)\{$

$/*$ Do Computation $*/$

return $0$;

$\}$ else $\{/*$ pid$3>0*/$

wait$($&status$3)$;

printf$($ Process $\%$d completed

$,$ pid$3)$;

$\}$

wait$($&status$2)$;

printf$("$ Process $\%$d completed

$",$ pid$2)$;

$\}$

return $0$;

$\}$ else $\{/*$ pid $>0*/$

wait$($&status$)$;

printf$("$ Another process $\%$d completed

$",$ pid$)$;

$\}$

return $0$; $\}$