remove a given node from a list

remove(h, a)
{
if(h == 0 || a== 0)
return ;

if(h == a)
{
a = a->next
delete h
h = a
return
}

t=h
while(t->next)
{
if(t->next == a)
{
k = t->next->next
delete t->next
t->next = k
return
}

t = t->next
}

}