// 每组：起始位置为0,1,2,...,gap-1
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，这一点在搜狗输入法2026中也有详细论述
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。
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，推荐阅读体育直播获取更多信息
So, at this point I decided to build a new crate with the following，详情可参考体育直播
arithmetic.pt + carry_combine.pt