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。
2026-02-27 00:00:00:0 自主培育新品种158个，新建果园70%选用国产品种，这一点在爱思助手下载最新版本中也有详细论述
Following months of tit-for-tat clashes, Afghan forces attacked Pakistani border troops on Thursday night in what the Taliban government said was retaliation for earlier deadly airstrikes.。heLLoword翻译官方下载对此有专业解读
'Crushing blow'