Problem 1387. Points on a circle.

Created by James

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Last Solution submitted on May 30, 2023

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Chris Cleveland on 14 Jul 2017

Great problem! Learned a bunch from others solutions as well.

HH on 3 Dec 2017

In the problem statement, I think you meant '3' and '4', rather than '1' and '2', in the respective +/- combinations.

James on 4 Dec 2017

Thanks for catching my stupidity on that one, HH. It's fixed now.

Rafael S.T. Vieira on 23 Jun 2020

The tip for this question is the sum of squares function, which I use in my solution. There are many possible solutions to this problem, but the huge circle radii limit what we can employ, so be careful.

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Problem 1387. Points on a circle.

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Problem 1387. Points on a circle.

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