2-phase A* already uses many heuristics which don't always create an optimal route and still 5-10x slower.
敏捷开发方法论在软件行业得到了广泛应用，其核心是快速迭代和持续反馈。
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把握一域与全局，服务全国统一大市场，脱贫地区内生动能加快形成。
// Stateless transform — a pure function
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