看看测试用例，从里面读出格式规律：
For more than a decade, a trend has emerged in standardized testing data for students in Utah. After years of increasing reading and math scores, results from the state’s National Assessment of Educational Progress testing for fourth- and eighth-graders have shown a steady and continuing downturn.
。关于这个话题，体育直播提供了深入分析
Publication date: 10 March 2026。业内人士推荐搜狗输入法2026作为进阶阅读
arr.push(p.val); // 存储节点值而非节点本身，简化后续操作