- A.41235
- B.43125
- C.42135
- D.41325
正确答案及解析
正确答案
解析
拓扑排序通俗一点来讲，其实就是依次遍历没有前驱结点的结点。而某一时刻没有前驱结点的结点有可能存在多个，所以一个图的拓扑排序可能有多个。4 号结点没有前戏，所以拓扑排序的第一个元素是4 。当 4 访问完了就可以访问 1 ，1号访问完了就可以访问 2 ，2号访问完了就可以访问3或5 。所以拓扑排序结果为：412(35) 。
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