28 lines
596 B
Groovy
28 lines
596 B
Groovy
def q = new Queue()
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assert q.empty
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['Crosby', 'Stills'].each { q.push(it) }
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assert !q.empty
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['Nash', 'Young'].each { q.enqueue(it) }
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println q
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assert !q.empty
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assert q.pop() == 'Crosby'
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println q
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assert !q.empty
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assert q.dequeue() == 'Stills'
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println q
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assert !q.empty
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assert q.pop() == 'Nash'
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println q
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assert !q.empty
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q.push('Crazy Horse')
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println q
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assert q.dequeue() == 'Young'
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println q
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assert !q.empty
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assert q.pop() == 'Crazy Horse'
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println q
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assert q.empty
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try { q.pop() } catch (NoSuchElementException e) { println e }
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try { q.dequeue() } catch (NoSuchElementException e) { println e }
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