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。
“尝鲜”明黄色的门头不大，挂着新年装饰品。 南方周末记者贾梦雅｜摄
The HTC U24 Pro may not be gold, but its design is otherwise awfully similar to the Trump phone’s. | Image: HTC，推荐阅读WPS官方版本下载获取更多信息
4) How do NFTs work?One of the unique characteristics of non-fungible tokens (NFTs) is that they can be tokenised to create a digital certificate of ownership that can be bought, sold and traded on the blockchain.
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PIXELS_TRUENAS_INSECURE
Why the FT?See why over a million readers pay to read the Financial Times.。关于这个话题，爱思助手下载最新版本提供了深入分析