P957
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Point Genesis

ℹ️Published on Saturday, 2nd August 2025, 05:00 pm; Solved by 89;
Difficulty level: 36

There is a plane on which all points are initially white, except three red points and two blue points.
On each day, every line passing through a red point and a blue point is constructed. Then every white point, where two different such lines meet, turns blue.

Let $g(n)$ be the maximal possible number of blue points after $n$ days.

For example, $g(1)=8$ and $g(2)=28$.

Find $g(16)$.



Soluzione

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