CS109_ Eulerian Circuits


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Unformatted text preview: d to exit any node I enter until I enter one of the nodes I have already visited ­­ call such a node X. When this happens, one of two things will happen: a. There are edges out of X that I am yet to use. If that is the case, then keep going. b. There are no more edges out of X that I am yet to use. Call the circuit we obtained "C". Under case b, we have one of two possibilities ­­ either: All edges of the graph are in C, in which case we are done since we proved the...
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