描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
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，推荐阅读搜狗输入法2026获取更多信息
这种规模的投资远超经济产出——这不是普通的预算问题，而是结构性回报难题。这就是AI基础设施的“投资悖论”：超大规模云服务商们陷入了典型的“囚徒困境”——没有人敢停止投资，因为担心失去竞争优势；但持续加码投资，又在不断摧毁股东价值。，推荐阅读旺商聊官方下载获取更多信息
This approach shares a lot in common with the idea of multivariate interpolation over scattered data. Multivariate interpolation attempts to estimate values at unknown points within an existing data set and is often used in fields such as geostatistics or for geophysical analysis like elevation modelling. We can think of our colour palette as the set of variables we want to interpolate from, and our input colour as the unknown we’re trying to estimate. We can borrow some ideas from multivariate interpolation to develop more effective dithering algorithms.，更多细节参见heLLoword翻译官方下载