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我是建树做的,但一直WA,是算法不对吗?先建立一棵以节点1为根的(图)树,然后最短路程=(图的所有边的权值)*2,可能的种数=全部分支节点的子节点数的阶乘的乘积 不是这么做的吗? Followed by:
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