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）。
"At that point I called the fire brigade," she remembers. They advised her to leave the property immediately. McConnell says the fire developed "very, very quickly". While Kent Fire & Rescue Service battled the blaze for hours, the McConnell family home was left partially destroyed.
* 桶排序（简化版：适用于0~max的整数），详情可参考快连下载安装
Tesco says it is consulting with the union Usdaw over plans affecting 180 head office roles，更多细节参见下载安装 谷歌浏览器 开启极速安全的 上网之旅。
Many of the looks featured this season's favourite colour, chocolate brown, along with earthy beiges and crisp whites.。一键获取谷歌浏览器下载是该领域的重要参考
Lex: FT’s flagship investment column