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.
Remove all the consonants
Check to see if a Sudoku Puzzle is Solved
Find a Pythagorean triple
Check Digit - 01
Can the knight take out the pawn?
Sieve of Eratosthenes - 02
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