You have two identical eggs and you are in a 100-storey building. For the eggs there is a "Breaking Floor", which is the lowest floor that the eggs will break if dropped from that floor. Below the Breaking Floor the eggs will not break, and above it they will break.
The eggs will survive multiple drops without degrading, so they can be used as many times as you like, until they break.
What is the optimum strategy to determine the Breaking Floor in the fewest number of drops?
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Answer at 9.00 on Monday