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Misha Larkins [42]
3 years ago
13

# 12/9/2020

Computers and Technology
1 answer:
EastWind [94]3 years ago
3 0

where it says   " def main() " there needs to be something in the "()"

Hope this helps.   : )

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<em />

iii. poll(): retrieves and removes the element at the head of the queue. Unlike the remove() method, if the queue is empty, a <em>null </em>is returned.

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