第一百零八条 公安机关进行询问、辨认、勘验，实施行政强制措施等调查取证工作时，人民警察不得少于二人。
The opportunity is enormous right now precisely because it's so new. Early adopters are claiming top positions in AI responses while their competitors remain oblivious to this emerging channel. But this window won't stay open forever. As more people recognize the value of appearing in AI results, competition will increase and optimization will become more sophisticated. The time to understand and implement AIO strategies is now, while the landscape is still relatively uncrowded.
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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。
The design of Web streams predates async iteration in JavaScript. The for await...of syntax didn't land until ES2018, two years after the Streams Standard was initially finalized. This timing meant the API couldn't initially leverage what would eventually become the idiomatic way to consume asynchronous sequences in JavaScript. Instead, the spec introduced its own reader/writer acquisition model, and that decision rippled through every aspect of the API.
Collins shakes her head at the memory of the disaster, and of the friends whose lives were lost.