java - graph representation with minimum cost (time and space) -


i have represent graph in java neither adjacency list nor adjacency matrix..

the basic idea if 

deg[i]

is exit degree of vertex i, neigboors can store in

edges[i][j] 

i <= j <= deg[i]

, given 

edges[][]

must initialized values dont know how make differ adjacency matrix..

any suggestions?

in knowledge there 2 ways represent graph in language.

  • either use adjacency matrix
  • or use incidence matrix

you can make incidence matrix like

         e1  e2  e3  e4      
  v1     1   2   1   1        
  v2     2   1   2   1        
  v3     1   1   1   2        
  v4     1   1   2   1


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