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August 12, 2021 01:26
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# https://www.programiz.com/dsa/queue | |
# Queue implementation in Python | |
class Queue: | |
def __init__(self): | |
self.queue = [] | |
# Add an element | |
def enqueue(self, item): | |
self.queue.append(item) | |
# Remove an element | |
def dequeue(self): | |
if len(self.queue) < 1: | |
return None | |
return self.queue.pop(0) | |
# Display the queue | |
def display(self): | |
print(self.queue) | |
def size(self): | |
return len(self.queue) | |
q = Queue() | |
q.enqueue(1) | |
q.enqueue(2) | |
q.enqueue(3) | |
q.enqueue(4) | |
q.enqueue(5) | |
q.display() | |
q.dequeue() | |
print("After removing an element") | |
q.display() |
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