代码里画了一个爱心形状的 2D 路径，然后给它一个厚度，它就变成了一个 3D 的爱心。
This Tweet is currently unavailable. It might be loading or has been removed.。同城约会是该领域的重要参考
习题链接：LeetCode 853. 车队，详情可参考Line官方版本下载
Comparison between an unsorted and a luminance sorted candidate set, using Knoll’s algorithm on an 8-colour irregular palette. Left to right: unsorted, sorted.