Perl allows to use arithmetics on string
Here's the code:
sub step_over_desert # () I won't repeat this mistake anymore!!!
sub cover_the_distance # () I won't repeat this mistake anymore!!!
my ($me, $desert_width, $max_spit_distance, $num_legs, $last_name,
+ $day_phone, $days_without_water) = @_;
my $todo = $desert_width * $num_legs;
print "$desert_width miles remaining; $todo steps yet to do.\n"
$num_steps += $num_legs;
print "Steps made: $num_steps\n";
#cover_the_distance("strong animal", 5, 15, 4, "Mabooka", "(123)-456-7
cover_the_distance("strong animal", "five thousand miles", 15, 4, "Mab
+ooka", "(123)-456-7890", -1);
Don't try it at home
Well, I recommend at the very least to redirect the output to a file:-).
Why people do this?
Again, the main reason: because it allows you. One may expect either a compile-time error or a run-time exception. But Perl allows you to shoot your own foot.
Actually, this is an obfuscated (starting to love the word) code from a real-life app. The real application would send a query over the wire to the server,
get a responce line --
-- that should look smth. like this:
200 OK 578
-- meaning " there're 578 lines yet to read from the socket,
parse this line and create a loop:
Well guess what? Once in 10000 times the server would get tired and send a garbled status line -- smth. like:
200 OK whatever,man
will start the almost infinite loop. (Try the code above).
Ask your new hires during the inteview: "What is the result of the following operation:
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