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.
Back to basics 6 - Column Vector
Column norms of a matrix
Center of mass
Solving Quadratic Equations (Version 1)
Sky full of stars - 03
Sieve of Eratosthenes - 02
Yoonir - 02
Hanging cable - 02
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