one possible solution can be that while storing the graph using adjacency
lists u can associate a color variable with each edge so that u color the
edge as u traverse it
like if u want to check wether edge (u,v) has been traversed while
traversing u's adjacecny list check wether (u,v) has been colo
Let G = (V, E) be a **, cONNECTED undirected graph. Give an O(V + E)-time
algorithm to compute
a path in G that traverses each edge in E exactly once in each direction.
Describe how you can
find your way out of a maze if you are given a large supply of pennies.
from clrs
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