* @param arr 待排序数组
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Some of the biggest names in music are performing at the Brit Awards this weekend. Sure, there are a lot of awards to be presented, but that's not really what the Brits is about. It's about incredible performances, risqué jokes from the host, and celebrities behaving very badly. It's always a messy night (in the best kind of way).，这一点在谷歌浏览器【最新下载地址】中也有详细论述
Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.。快连下载安装对此有专业解读