in reply to (OT) Interview questions -- your response?
|1a)||Essentially O(n2) runtime. (O(n*m) to be precise.)|
|1b)||Either use some sort of hashing function or sort the b_array and use binary search to cut down on the cost of looking up an element. In Perl, a hash is the natural approach.
|3)||It requires a database capable of handling concurrent requests. They need to be transformed into some common query lanague, probably SQL. Results will be churned through a templating system depending on the desired result format.|
I think the questions are more than fair; in fact, they're close to trivial. I wouldn't want to employ anyone who fails on these. I remember reading about an interview question Michael Abrash uses:
Implement in-order walking of a binary tree. Do not use recursion.
Hardly surprising, though saddening, that as he noted, failure rates on this one are pretty spectacular.
Makeshifts last the longest.
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