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// console.log(canSeePersonsCount([7,6,5,4,3])); // 输出 [4,3,2,1,0]（正确）
。关于这个话题，heLLoword翻译官方下载提供了深入分析
Also: Why my favorite Linux distro is slowing down - and I'm thrilled about it
This is quick because it's operating on a very small, localized part of the map.