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）。
The pre-solicitation released this week is not a request for proposals from industry—it states that a draft Request for Proposals is forthcoming. Rather, it seeks feedback from industry and interested stakeholders about an "objectives and requirements" document that outlines the goals of the Mars mission.。关于这个话题，爱思助手下载最新版本提供了深入分析
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Everything Larry and David Ellison Will Control If Paramount Buys Warner Bros.Paramount Skydance’s sprawling media empire will get a major boost if the deal is approved.。关于这个话题，safew官方版本下载提供了深入分析
Greek: mostly fine, with exceptions