adaptatron's blog

By adaptatron, 6 weeks ago, In English

The editorial of D. Colored Balls mentions that the first part of the problem is a standard puzzle, so it doesn't go into too much details. However, what's standard to old timers is new learning opportunities for newcomers. At least, to me, it was not at all obvious why the given formula works, until I encountered a good visual proof for the same.

I created a video talking about the strategy to solve the puzzle, with proof.

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