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The tree starts as a single region covering the whole space. As points arrive, they get dropped into the region that contains them. When a region exceeds its capacity (the maximum number of points it can hold before splitting), the region divides into four children, and the existing points get redistributed.
。heLLoword翻译官方下载对此有专业解读
// ⚠️ 易错点7:循环条件写成nums[right+1] <= maxVal(相等元素无需纳入无序区间)
Trade between the EU and two South American countries may start within two months under a provision application of the deal