狄克斯特拉算法在社交网络中用于判定： Dijkstra’s Algorithm is used in social network for determining单项选择题

A

交友网络中，一个人与另一个人之间存在多少条路径。how many paths exist between a person and another person in the friendship network.

B

一个人是否与交友网络中的另一个人相连通。whether a person is connected to another person in the friendship network.

C

有多少人与某个人建立了交友关系。how many people are connected to a person their friendship relations.

D

一个人能以多快的速度向其他人传播信息。how fast a person can disseminate information to all other people.

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类似问题

Consider the following network.  With the indicated link costs, use Dijkstra's shortest-path algorithm to compute the shortest path from node u to node z. A. Show how the algorithm works by computing the table shown below. Note on answer format: Fill in the N* set with selected nodes without space. For example, if the node set contains nodes, x, y, and z, enter xyz in the blank. Fill in the D(.)p(.) cell without space, for example, for D(.)=5 and p(.)=u, fill in 5u in the blank. When the distance is infinity, write in the abbreviation inf in the blank. When there is a tie in node distances, please choose from left to right, i.e. the node in the left column is chosen first. Step N* D(v)p(v) D(w)p(w) D(x)p(x) D(y)p(y) D(z)p(z) 0 [Fill in the blank] [Fill in the blank] [Fill in the blank] [Fill in the blank] [Fill in the blank] [Fill in the blank] 1 [Fill in the blank]   [Fill in the blank] [Fill in the blank] [Fill in the blank] [Fill in the blank] 2 [Fill in the blank]     [Fill in the blank] [Fill in the blank] [Fill in the blank] 3 [Fill in the blank]       [Fill in the blank] [Fill in the blank] 4 [Fill in the blank]         [Fill in the blank] 5 [Fill in the blank]           B. Enumerate the shortest paths from u to z. Enter only one node name, v, w, x, or y, into each of the intermediate node cells. Give the total path cost of u to z in the last cell.   1st node 2nd node 3rd node 4th node last node Total path cost u → z u [Fill in the blank] [Fill in the blank] [Fill in the blank] z [Fill in the blank]

What is the time complexity of Dijkstra's algorithm using a priority queue (min-heap) implemented with a binary heap?

Why is Dijkstra's algorithm not suitable for graphs with negative weight edges?

Question textApply Dijkstra's algorithm to find the shortest path from node 1 to all other nodes in the following directed graph. The numbers on the arcs represent costs , with data provided again below for completeness. Node 1: Node 2: Node 3: Node 4: Node 5: Node 6: Node 7: Node 8: Enter the shortest distance from node 1 to each node: Node 3: Answer 1 Question 3[input] predecessor = Answer 2 Question 3[input] Node 4: Answer 3 Question 3[input] Node 5: Answer 4 Question 3[input] If the problem of finding a shortest path from node 1 to node 3 was solved as a linear program with arc flow variables , then:The reduced cost of would be Answer 5 Question 3[input] If is the optimal value of the dual variables for the flow conservation constraints, then Answer 6 Question 3[input]

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