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lec14a - Queues Linear list One end is called front Other...

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Queues Linear list. One end is called front . Other end is called rear . Additions are done at the rear only. Removals are made from the front only.
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Bus Stop Queue Bus Stop front rear rear rear rear rear
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Bus Stop Queue Bus Stop front rear rear rear
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Bus Stop Queue Bus Stop front rear rear
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Bus Stop Queue Bus Stop front rear rear
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The Interface Queue public interface Queue { public boolean isEmpty(); public Object getFrontEelement(); public Object getRearEelement(); public void put(Object theObject); public Object remove(); }
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Revisit Of Stack Applications Applications in which the stack cannot be replaced with a queue. Parentheses matching. Towers of Hanoi. Switchbox routing. Method invocation and return. Try-catch-throw implementation. Application in which the stack may be replaced with a queue. Rat in a maze. Results in finding shortest path to exit.
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Wire Routing
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Lee’s Wire Router start pin end pin Label all reachable squares 1 unit from start.
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Lee’s Wire Router start pin end pin Label all reachable unlabeled squares 2 units from start. 1 1
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Lee’s Wire Router start pin end pin Label all reachable unlabeled squares 3 units from start. 1 1 2 2 2 2 2
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Lee’s Wire Router start pin end pin Label all reachable unlabeled squares 4 units from start. 1 1 2 2 2 2 2 3 3 3 3
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Lee’s Wire Router start pin end pin Label all reachable unlabeled squares 5 units from start.
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