This problem deals with finding a minimal path through a grid of points while traveling only from left to right.

该问题是要在一组点的格网中找到一条从左至右的最小路径。

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Even the maroon background is enlivened with a subtle grid texture that reflects myriad points of background light while lending the frieze the suggestion of gilded relief-carved marble (by then it was known that ancient Greek marbles were originally painted and gilded).

WSJ: Masterpiece: Gilded Abundance, Elegantly Restrained