Squire and his team could see, from the type of light sockets and electrical outlets visible in the images, that Lucy was in North America. But that was about it.
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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Keep reading for $1What’s included。业内人士推荐91视频作为进阶阅读
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