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此题的Prim 和 Kruskal 解法论述：如图 A-D 4 A-E 4 D-X 5 E-B 5 X-B 3 用Krus，找一的MST是：X-B A-D A-E E-B 用Prim，找到的MST是：A-D A-E D-X X-B 此题，用Krus方法易求得正确结果，但优化Prim也是可以通过的。 例如用Prim,在选择了A-D A-E后，下一步有D-X B-E两边供选，我们选择B-E就OK了。 Followed by:
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