int key = arr[i]; // 待插入的元素
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Nasa is adding an extra mission to its Artemis programme before it attempts to land astronauts on the Moon for the first time in half a century.
await blocking.writer.write(chunk5); // waits until consumer reads
By appropriately scaling the perturbation amount for each colour channel separately, we can also extend this to work with palettes where is different for each colour component, provided that they are still regularly spaced. Unfortunately, the less regular the palette is, the less effective this technique becomes. If we wish to leverage the strengths of ordered dithering for use with irregular or arbitrary palettes, a more general solution is needed.