需要索引（如算距离、下标）：栈存索引，用 nums[stack.at(-1)] 取值比较。
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。搜狗输入法2026是该领域的重要参考
curl "https://generativelanguage.googleapis.com/v1beta/files?key=$API_KEY"
A simpler API would mean fewer concepts, fewer interactions between concepts, and fewer edge cases to get right resulting in more confidence that implementations actually behave consistently.
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