Step through the construction below. Each time a new point is inserted, watch the tree decide whether it needs to split a region:
1967年出生的姚雄杰，与后来名震互联网界的张一鸣、王兴同乡，但他的创业轨迹却截然不同。上世纪八十年代初，姚雄杰还在深圳国贸中心摄影器材公司谋生，从最基层做起。
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For slices that are on the stack, it allocates a new slice on the
2-phase A* already uses many heuristics which don't always create an optimal route and still 5-10x slower.
“功成不必在我，功成必定有我。”