- 父节点i的左子: 2*i+1, 右子: 2*i+2
连日来，各地区各部门各单位把开展学习教育作为重要政治任务，深入学习贯彻习近平总书记重要讲话和重要指示精神，认真落实党中央部署，精心组织实施，确保学习教育取得实效。
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'Scream 7' review: Kevin Williamson makes Ghostface fun again
Wordle eventually became so popular that it was purchased by the New York Times, and TikTok creators even livestream themselves playing.
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