需要索引（如算距离、下标）：栈存索引，用 nums[stack.at(-1)] 取值比较。
sort palette by luminance
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A recent study by Fortune magazine stated that AI search engines are confidently wrong over 60% of the time, with various widely-used AI tools exhibiting significantly high error rates. This trend often extends to AI-generated captions, as run-on sentences, misheard phrases, and dialogues compressed into an incomprehensible stream of text may be familiar features across […]
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