Problem 52629. Count the ways to draw non-intersecting chords between points on a circle

There are 9 ways to draw non-intersecting chords between four points on the perimeter of a circle (including no chords at all). In this case there is no way to draw three chords between the four points because two would have to intersect at one of the points or elsewhere.
Write a function to count the ways to draw non-intersecting chords between a given number of points.

Solution Stats

80.0% Correct | 20.0% Incorrect
Last Solution submitted on May 07, 2023

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