4. 从后向前遍历原数组，按count位置放入结果数组
you get with an offset of 0, which is a use of language that I find charming.
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The US Cybersecurity and Infrastructure Security Agency (CISA), which is part of the Department of Homeland Security, is getting a new acting director, as reported by ABC, less than a year after Madhu Gottumukkala took charge of the agency as deputy director and acting director in May 2025.
def close(self) - None: