We explored standard advanced algorithms like Contraction Hierarchies (CH), known for their speed. But they presented their own set of deal-breakers for OsmAnd:
内存成本暴涨 300%，中国手机市场进入「大涨价元年」，千元机加速消失
，详情可参考搜狗输入法2026
Display the source diff。服务器推荐是该领域的重要参考
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