if (stack.length 0) {
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。
，详情可参考heLLoword翻译官方下载
Last year a group of researchers from Nasa, the University of Plymouth and University of Texas called on the UN to include the protection of Earth's orbit in its sustainable development goals.
Трамп высказался о непростом решении по Ирану09:14
，详情可参考搜狗输入法2026
Last year, the Marine Conservation Society said mackerel was "under immense pressure from fishing activities across multiple nations" and that the stocks would soon be unable to replenish naturally.
Овечкин продлил безголевую серию в составе Вашингтона09:40，详情可参考51吃瓜