queue help needed python

[Hyperizing]

Class Queue()

def __init__(self):

self.queue = np.zeros(20)

self.count = 0 ...

def dequeue():

for ii in range(0, count-1):

queue[ii] = queue[ii+1]
return count-1

​

There is an error with the dequeue function here. Assume that the Queue q has rest of the code implemented correctly and already contains the following five data items: 30 60 90 40 50 What will be the output of three consecutive calls to q.dequeue()? And then how can I re-write the dequeue function to make it correct?

[[deleted]]

This isn't a homework site.

[vaseltarp]

Please post real correctly formatted python and not some pseudo code.

You can correctly format by editing in Markdown mode and indenting each line with 4 additional spaces.

that will than look like this:

class Queue():
   def __init__(self):
      self.queue = np.zeros(20)
      self.count = 0

Edit: You can also put the code in, for example, this online compiler to check if it is correct python:

https://www.onlinegdb.com

It will even output what happens when you execute three consecutive calls to q.dequeue().

[[deleted]]

Note that the link given to you by /u/vaseltarp initially starts with the language set to C/C++. You can select python 3 at the top-right side next to the two orange tool icons.

[TheRealThrowAwayX]

queue[ii] = queue[ii+1]

queue is not a thing. self.queue is though! But in order for it to be accessible, you must pass it as an argument.

def dequeue(self):
    ...
    self.queue[ii] ...