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Facebook 2011 Hacker Cup
- RiderOfGiraffes 16y agoDup: http://news.ycombinator.com/item?id=1990014 http://news.ycombinator.com/item?id=1990014
- DupDetector 16y agoDup: http://news.ycombinator.com/item?id=1990014 http://news.ycombinator.com/item?id=1990014 Many comments there.