Fire-Blaine #28
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Fire-Blaine #28
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CheezItMan
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May 8, 2021
CheezItMan
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CheezItMan
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You got it! Nice work Blaine, this works. Well done.
| @@ -1,19 +1,23 @@ | |||
| class Stack | |||
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| def empty? | ||
| raise NotImplementedError, "Not yet implemented" | ||
| # return @front == -1 | ||
| return @store.all?{ |e| e.nil? } | ||
| end |
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Why not instead check to see if front and back are both 0?
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Honestly, didn't think of it. All I knew was I wanted to make sure the list was empty and I was getting errors because of nil so I googled for a fix. :-(
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| elsif self.empty? | ||
| @front = 0 | ||
| @back = 0 |
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But if the Queue is empty, the back and front are already set to zero.
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| end | ||
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| def dequeue |
| return value | ||
| end | ||
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| def front |
| return @store.all?{ |e| e.nil? } | ||
| end | ||
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| def to_s |
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Stacks and Queues
Thanks for doing some brain yoga. You are now submitting this assignment!
Comprehension Questions
OPTIONAL JobSimulation