// 单调栈：存储索引（而非值），栈内索引对应的nums值保持「单调递减」
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Someone clones the repo on a new machine and asks you to send them the .env file，更多细节参见heLLoword翻译官方下载
The team is now planning to build a bigger space factory - one that could make semiconductor material for 10,000 chips.