Россиянин год прослушивал квартиру бывшей возлюбленной и отделался условным сроком20:58
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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Where does the UK get its oil and gas from?
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“We try to teach them to use AI as a research tool,” he said. “So, you know, we’re not walking away from AI. I use AI as part of my research. So it is an amazing research tool, but it’s not a substitute for thinking, and it’s not a substitute for analysis.