The breakfasts I was able to identify cluster into three major regions:
Option 1: The system can update the cost of that specific shortcut in the base graph and quickly re-run the Dijkstra search (Step 2) on the abstract graph to find an alternative high-level path.
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While the number of GPs working in the NHS has been increasing over the last year or so, the number of patients per GP is still a fifth higher than it was eight years ago.，详情可参考搜狗输入法下载
Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.