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。
He says the "premium line" he is working on will sit alongside the brand's more affordable options and be for those who would "rather spend a bit more money and want something higher quality".
，更多细节参见旺商聊官方下载
any value you keep, and unreference (unref) any value you receive.
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The Comeback Season 3 premieres March 22 at 10:30 p.m. ET on HBO and HBO Max. Seasons 1 and 2 are streaming on HBO Max.