Streetlights and Intervals

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There are $N$ streetlights at points $x_1$, $x_2$, . . ., $x_n$ on a road. Chef wants to create unit length intervals to determine the cost of marking the road between two streetlights. Determine the size of the smallest set of unit-length closed intervals that contain all the given streetlights. ###Input: - The first line of the input contains a single integer $T$ denoting the number of t

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solution.cppC++17

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