This article originally appeared on Engadget at https://www.engadget.com/wearables/ultrahumans-new-pro-ring-comes-with-15-days-battery-life-120038820.html?src=rss
2.2 长程执行（Long-Horizon）：代码重构与文档生成
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输入：nums = [2,6,4,8,10,9,15]
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The government said it had "taken action" to clean up rivers, lakes and seas. Southern Water has been approached for comment.