This appears to be an interview problem, possibly to determine how candidates think. It reminds me of stories like this: http://www.ee.ryerson.ca/~elf/hack/re

This appears to be an interview problem, possibly to determine how candidates think. It reminds me of stories like this: http://www.ee.ryerson.ca/~elf/hack/recovery.html http://www.ee.ryerson.ca/~elf/hack/recovery.html