vector  Vertices;   map> adjList;   What is the worst case time complexity for this version of _LookupVertex?     bool _LookupVertex(VertexT v) const {       if (adjList.count(v) != 0) {           return true;       }       return false;   }   V is the number of total vertices in the graph, E is the average number of edges per vertex.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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 vector<VertexT>  Vertices;
  map<VertexT, vector<list>> adjList;

 

What is the worst case time complexity for this version of _LookupVertex?

 

  bool _LookupVertex(VertexT v) const {
      if (adjList.count(v) != 0) {
          return true;
      }
      return false;
  }

 

V is the number of total vertices in the graph, E is the average number of edges per vertex.

O(v)

O(VlogE)

O(logV)

O(V^2)

O(E+V)

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