Spring Developer Interview Questions

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You have a wall. It doesn't matter how big it is. You are given an Ivy (plant) which is set at the bottom of the wall. This Ivy grows at a rate which is squared the rate of the day before (ie. day 1: 1, day 2: 2, day 3: 4, day 4: 16, etc). If we buy another Ivy plant, putting it on the opposite side of the wall, which performs in the same way to the first, how much time would we be gaining?
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Spring Into Banking

Interviewed at Deutsche Bank

3.8
Jan 6, 2012

You have a wall. It doesn't matter how big it is. You are given an Ivy (plant) which is set at the bottom of the wall. This Ivy grows at a rate which is squared the rate of the day before (ie. day 1: 1, day 2: 2, day 3: 4, day 4: 16, etc). If we buy another Ivy plant, putting it on the opposite side of the wall, which performs in the same way to the first, how much time would we be gaining?

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