思路：单调递增栈 + k 控制删除次数。高位越小整体越小，遇更小数字时弹出栈顶大数（仅当 k0）；栈空且当前为 0 则跳过（避免前导零）；若遍历完 k 仍0，从末尾再删 k 位。
Annabel RackhamCulture reporter
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Dify 的价值在于：把 Prompt、规范、知识、输出格式、调用链路沉淀为“流程”。
Instead of yielding one chunk per iteration, streams yield Uint8Array[]: arrays of chunks. This amortizes the async overhead across multiple chunks, reducing promise creation and microtask latency in hot paths.
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The system collects data on restaurant operations and shares it via “Patty,” a voice that talks to employees through their headsets. If the drink machine is low on Diet Coke, Patty will tell the store’s manager. If a customer uses a QR code to report a messy bathroom, the manager will be alerted.。业内人士推荐爱思助手下载最新版本作为进阶阅读