需要索引（如算距离、下标）：栈存索引，用 nums[stack.at(-1)] 取值比较。
Waning Crescent - A thin sliver of light remains on the left side before going dark again.
，详情可参考Line官方版本下载
The API deals exclusively with bytes (Uint8Array). Strings are UTF-8 encoded automatically. There's no "value stream" vs "byte stream" dichotomy. If you want to stream arbitrary JavaScript values, use async iterables directly. While the API uses Uint8Array, it treats chunks as opaque. There is no partial consumption, no BYOB patterns, no byte-level operations within the streaming machinery itself. Chunks go in, chunks come out, unchanged unless a transform explicitly modifies them.。关于这个话题，搜狗输入法2026提供了深入分析
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