# List checkpoints
在看不见的地方，数智技术正不断筑牢安全屏障，让群众的数字生活更有获得感、幸福感、安全感。
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4.4 1019. 链表中的下一个更大节点
When another data point is inserted and the Voronoi diagram reconstructed, the newly created region displaces the area that once belonged to the old regions. Those points whose regions were displaced are considered natural neighbours to the new point. The weight of each natural neighbour is given by the area taken from the total area occupied by the new region. In 3D, we measure polyhedral volumes instead of areas.
"Get the camera, quick," said Lovell.