The center and radius of two circles are given.
Determine whether they touch.
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.
Most nonzero elements in row
How many trades represent all the profit?
Given area find sides
Minimum of each diagonal
Sky full of stars - 03
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