Going to start fresh.
Initial commit
Extracted tear down method.
sample input.
Deleted print code
cleaning up code
Change sticker count and extract methods.

Sticker count is managed by original stickers and current stickers intead of the notion of stickers from trade.
cleaned up logic
Experimenting

The current count at the source and destination are now in sync. If one is updated the other is too.
Starting from scratch (again)
Implemented the bfs

doing stuff in a weird order...
More stuff.

Edges now have references to their source and target vertexes instead of indexes. The source and target vertex will always be the last two vertexes in the array. People and stickers will be zero indexed.
Build the graph

Getting all of the test cases right except for 1!
AC!
Deleted print statements.
Clean up code.
Merged with branch 10779