Now, OsmAnd performs another Dijkstra search, but this time on the much smaller "base graph." This graph consists only of the border points and the pre-calculated shortcut values between them.
抬头张望四周，春风拂过的世界好像全部都在缓缓地松动起来。院里几棵刻满了岁月皴裂的老槐树，尽管依旧沉默地站立着，像几个岁月老人在铅灰的天幕下打着盹，但铁灰色的枝干末梢，在微风的轻轻摇曳中已染上了一层淡淡的青晕。整个冬天涂着暗灰色彩的马尾松，也明显变出油润的深绿。路旁并排矗立的白杨，光秃秃的枝干举着稀疏的鸟巢，灰白的树皮上布满块状的斑纹，但枝条的顶端却鼓起了小小的、毛茸茸的苞。苞蕾的颜色与树皮几乎无别，它们紧紧的，像抿住的嘴唇，但不再是向下的、蜷缩的、听天由命的姿态，而是随着翘起的枝干朝向天空昂着头，表现出不可逆转的生命活力。尽管斜逸枝丫上的芽苞伸手可及，你却不忍心去触碰，害怕惊动了一场正在发生的生命转机。
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In his Matching Soulmates paper in the journal of Public Economic Theory, everyone is in a computer simulated dating pool, where thousands of digitally created daters rank each other. His algorithm picks "first‑order soulmates": pairs who choose each other in a stable matching. It removes them, and runs it again with those left, and you get second‑order soulmates, and so on.。业内人士推荐快连下载-Letsvpn下载作为进阶阅读
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