// 易错点：升序排序会导致逻辑完全错误（无法判断后车是否追前车）
The new loft, and the continued monitoring of the bats, has cost about £50,000, funded through the Heritage Lottery Fund and other partners.
。Safew下载对此有专业解读
Фото: Petrov Sergey / news.ru / Global Look Press
const n = arr.length;