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.
Tic Tac Toe FTW
Project Euler: Problem 8, Find largest product in a large string of numbers
Specific Element Count
How to subtract?
The Tortoise and the Hare - 01
Yoonir - 01
Last Digit of fibonacci number
Minimal Path - 01
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