New York Magnets

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Abhiram is always playful like a small kid. This time around he has caught his old fascination to play with magnets (sigh!). He then challenges his friend Akshay saying let me test if you still know your basic physics(yeah, he actually said that to Akshay! ). He says, suppose I have these n magnets, and I have a destination wall made of iron. Let the iron wall be at a distance d from where I start

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solution.cppC++17

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