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奇怪，为什么邻接表不能AC？我用邻接表表示图，Dijkstra算法，每次从堆中取出最大的，为什么总是TLE？？后来TLE了一个晚上，第二天花了15分钟用数组写了一个却325ms AC了，奇怪的，街道应该是稀疏的啊，这样说来用邻接表的效率会更高一些，为什么会这样？ Followed by:
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