3. Eulerian graph
. Euler gave the theories about this problem as follows:
- network. The show is a graph is composed of the connection and a line connection between points
.- point with the welding line out to another point is a real number, called odd and if that point out to the point มีเส้น connect other is an even number. Is called even
.- the path of oiler is a road drag through the line across the network, with each of the lines are drawn through a single
theory of oiler
said that if any network point of a real number more than two up
.Will not create a path Euler you
.
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