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https://stackoverflow.com/a/68526695

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• State Design Pattern allows an object to change its behavior when its internal state changes.
• It is a behavioral type design pattern.
• It has State Interface which represents all behaviors (methods) the context will exhibit.
• The Concrete States in the state design pattern are the implementations of the State Interface that define behaviors specific to each state.
• It has Context Class that holds a reference to the current state and expose methods to clients.
• Useful to manage states in the applications and swtich between them.
• Easy to maintian since each state is a different class and state-specific behavior is encapsulated in its respective class.
• New states can be easily added by writing an extra class for the new state.
• E.g. States in a document, states in a game, or different modes in a GUI.

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• Make sure you have xauth installed. (See: xauth info or xauth list)
• On the server your /etc/ssh/sshd_config file should have these lines:

X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost no

• Make sure on client side you have X server installed.
• On the client side your ~/.ssh/config file should have these lines if not create new config file and add:

shubhamwagh

BitcoinMining explaination

Data

• Assume this is the hash of the lastest block (shortened to 30 characters): 00000000000001adf44c7d69767585
• Following are the hashes of a few valid transactions waiting for inclusion (shortened).

5572eca4dd4
db7d0c0b845

• And this the hash of one special transaction that you just crafted, which gives 10BTC (the current reward) to yourself:

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colours = np.array([
    bytearray(msg.data[rgb_field.offset + 2::msg.point_step]),
    bytearray(msg.data[rgb_field.offset + 1::msg.point_step]),
    bytearray(msg.data[rgb_field.offset + 0::msg.point_step])
    ]).transpose().astype(np.float32)/255.0

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import unittest
import copy
from itertools import cycle


def row(matrix, n):
    # returns row n of a 2d matrix
    return matrix.pop(n)

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#!/usr/bin/env bash


## If no bucket name is passed, prompt user to enter one from their account.
## Else, assign $1 to bucket_name.
get_bucket_name () {
  if [[ $# -eq 0 ]]; then
    echo
    echo "$buckets"
    echo

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import boto3

session = boto3.Session(
    aws_access_key_id='AWS_ACCESS_KEY_ID',
    aws_secret_access_key='AWS_SECRET_KEY',
)
s3 = session.resource('s3')
bucket = s3.Bucket('bucket-name')
bucket.objects.all().delete()
s3.meta.client.upload_file(Filename='filename-with-path', Bucket='qbot.co.robot.software.deployment.mk7', Key='only-filename-in-the-bucket')

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