The problem is asking for tangent circles.
Problem with the third test suite
in 3rd case,
they intersect at two points.
In geometry, tangent circles (also known as kissing circles) are circles that intersect in a single point.
Distance walked 2D
Sorted highest to lowest?
Back to basics 6 - Column Vector
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Combinatorics - 01
Cat's paw - 01
The Dark Knight
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