Draw the graph whose vertex set is the set of integers

| August 30, 2017

Question
Draw the graph whose vertex set is the set of integers from 1 to 7,

and two vertices x and y

are adjacent if |x-y| equivalence 0(mod 2)

1. Is it a simple graph?
2. Count degree of each vertex.
3. By adding some edges is it possible to transform it into Eulerian one?

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