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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。同城约会对此有专业解读
圖像加註文字，來自德國老牌大黨基民黨的默茨這次帶領史上最大規模的經濟代表團訪問中國。據路透社報導，來自德國老牌大黨基督教民主聯盟（CDU）的默茨，這次帶領史上最大規模的經濟代表團（包括大眾汽車、賓士、寶馬、空中巴士、西門子等高層）訪問中國。
What are Moon phases?According to NASA, the Moon takes about 29.5 days to orbit the Earth. Over the course of this period, it moves through eight recognisable phases. While the same side of the Moon always faces us, the amount of its surface lit by the Sun changes as it continues along its path. The shifts in sunlight create the different appearances we see from Earth, ranging from a fully illuminated Moon to a thin sliver or near darkness. The eight phases are: