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Use Prim s algorithm to compute the minimum spanning tree of G . You can use the following table to describe the execution of the
Use Prims algorithm to compute the minimum spanning tree of G
You can use the following table to describe the execution of the algorithm. The algorithm maintains a set S of vertices. The d value of a vertex v in S is minu in S:uv in E wu v
The pi value of a vertex v is the vertex u in S such that dv wu v; if dvinfty
then pi v
You can try to complete the value of the table following the Prim algorithm in
our lecture notes, the edges in the MST are and the total weight is
iteration vertex added to S a b c d e
d pi d pi d pi d pi d pi
s s infty s infty s
Table : Prims Algorithm for Minimum Spanning Tree
b points Use Dijkstras algorithm to compute the shortest paths from s to all
other vertices in G
You can use the following table to describe the execution of the algorithm on the
instance. The algorithm maintains a set S of vertices. The d value of a vertex v in S
is minu in S:uv in Edu wu v The pi value of a vertex v is the vertex u in S such
that dv du wu v; if dvinfty then pi v
iteration vertex added to S a b c d e
d pi d pi d pi d pi d pi
s s infty s infty s
Table : Dijkstras algorithm for Shortest Paths
The parents of vertices are:
a b c d e
parent
You can try to complete the value of the above two tables following the Dijkstras
algorithm in our lecture notes. The shortest paths to a is and the length
is ; The shortest paths to b is and the length is ;
The shortest paths to c is and the length is ; The shortest
paths to d is and the length is ; The shortest paths to e is
and the length is
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