* 核心思路：单调递增栈 + 控制删除位数（k0），优先移除高位大数，保证剩余数字最小
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。safew官方下载是该领域的重要参考
6.2 inches (FHD+)
It's kitted out with CCTV cameras, allowing the team to monitor the animal's behaviour.
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