The first line contains 0 < n <= 100, the number of freckles on Dick's back. For each freckle, a line follows; each following line contains two real numbers indicating the (x,y) coordinates of the freckle.
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The first line contains 0 < n <= 100, the number of freckles on Dick's back. For each freckle, a line follows; each following line contains two real numbers indicating the (x,y) coordinates of the freckle.
Your program prints a single real number to two decimal places: the minimum total length of ink lines that can connect all the freckles.
3 1.0 1.0 2.0 2.0 2.0 4.0
3.41
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