699. Falling Squares

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There are several squares being dropped onto the X-axis of a 2D plane. You are given a 2D integer array positions where positions[i] = [lefti, sideLengthi] represents the ith square with a side length of sideLengthi that is dropped with its left edge aligned with X-coordinate lefti. Each square is dropped one at a time from a height above any landed squares. It then falls downward (negative Y di

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solution.cppC++17

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