购物平台客服对张玉称预计3-15个工作日到账。 受访者供图
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。
。Line官方版本下载对此有专业解读
Екатерина Щербакова (ночной линейный редактор)，更多细节参见旺商聊官方下载
One farmer in Somerset told the BBC that he was living on a "knife edge" as his crops were days away from rotting in the floodwater.