[dspeyer]

At Google, at least, we try to make up new questions frequently and retire old ones.

[Evbn]

There aren't enough problem in the world for that to be possible, ignoring extremely superficial differences.

It always comes down to exercises from CLR lightly dressed up.

[theootz]

Sorry, but what's CLR?

[cagey]

http://en.wikipedia.org/wiki/Introduction_to_Algorithms