题目内容

17. The connected component is the maximal connected subgraph of ().

A. Undirected graph
B. Tree
C. Graph
Directed graph

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18. The minimal spanning tree can be constructed using the () algorithm.

A. Prim algorithm
B. Kruskal algorithm
C. Huffman algorithm
Dijitstra algorithm

19. In a graph with n vertex e-edges, the sum of degrees of all vertices is equal to ().

A. 2n
B. n
C. e
D. 2e

Sort the sequence {15, 9, 7, 8, 20, -1, 4}, and after one pass, the data arrangement becomes {9, 15, 7, 8, 20, -1, 4}, then The sorting method used is _____.

A. selection sort
B. Direct insertion sort
C. heap sort
D. hill sort

The advantages of sequential storage are large storage density and high efficiency of insertion and deletion.()