Link : Clone Graph
Clone
an undirected graph. Each node in the graph contains a label and
a list of its neighbors.
OJ's undirected graph serialization:
Nodes
are labeled uniquely.
We
use # as a separator for each node, and , as
a separator for node label and each neighbor of the node.
As an
example, consider the serialized graph {0,1,2#1,2#2,2}.
The
graph has a total of three nodes, and therefore contains three parts as
separated by #.
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