The one-dimensional circle packing problem is as follows: You have N circles of radii r1, r2,…, rN. These circles are packed in a box such that each circle is tangent to the bottom of the box and are arranged in the original order. The problem is to find the width of the minimum-sized box. Figure shows an example with circles of radii 2, 1, 2 respectively. The minimum-sized box has width
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Figure Sample for circle packing problem

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