ahmed4end

n = 50

prev = lambda n: [i for i,j in enumerate(bin(n)[:1:-1]) if int(j)][::-1][0]

powers  = lambda x, t=[]: t+[1] if  prev(x)==1 else powers(2**prev(x) - 1, t+[prev(x)])

print(powers(n))

ahmed4end

joseph = lambda x: (lambda j: 1 if x == j else 2*(x-j)+1)(2**[i for i,j in enumerate(bin(x)[:1:-1]) if int(j)][::-1][0])

print(joseph(10))

ahmed4end

def inf(n):
	yield n
	yield from inf(n+1)


def prime(s):
	n = next(s) 
	yield n
	yield from prime(i for i in s if i%n!=0)

ahmed4end

from random import random
from bisect import bisect

def weighted_choice(choices):
    values, weights = zip(*choices)
    total = 0
    cum_weights = []
    for w in weights:
        total += w
        cum_weights.append(total)

ahmed4end

from PyQt5 import QtWidgets, QtGui, QtCore
from colour import Color # pip install colour

class Main(QtWidgets.QWidget):
	def __init__(self):
		super().__init__()
		self.setStyleSheet("QPushButton{height: 30px;width: 200px;}")

		layout = QtWidgets.QHBoxLayout()

ahmed4end

import sys
from PIL import Image
import numpy as np
import math


def squircle(size=(50,50), color="black", level=4):
	i = Image.new(mode = 'RGBA', size=size , color=color )
	l = level
	w, h = i.size

ahmed4end

# Python - How to check for a valid sudoku.

sudoku =   [[8, 7, 5, 6, 2, 1, 9, 3, 4], 
            [6, 9, 4, 5, 3, 7, 2, 1, 8], 
            [1, 2, 3, 8, 4, 9, 7, 5, 6], 
            [4, 5, 1, 9, 7, 3, 6, 8, 2], 
            [3, 6, 7, 1, 8, 2, 5, 4, 9], 
            [2, 8, 9, 4, 5, 6, 1, 7, 3], 
            [5, 3, 6, 7, 9, 8, 4, 2, 1], 

ahmed4end

#Python - Fibonacci sequence (Lazy solution).

def feb(first=0, second=1):
	Next = first+second
	yield Next
	yield from feb(first=second, second=Next)

obj = feb()

for i in range(25):

ahmed4end

#Sol 1 - performance: Exp

vowels = { 'A': 1, 'E': 21, 'I': 7, 'O': 8, 'U': 5, 'T':4 }

result = []

def backtrack(trac=[], totalWeight=10, vowelsRepeatLimit={'A':5}):
	'''
	:params:
		:totalWeight: total weight target.

ahmed4end

import random, re, pyautogui, time, pyperclip , sys

chat = pyperclip.paste()

chatNames = re.findall(r'(?<=[PM|AM]\r\n).*(?=\r\n)', chat)

chatNames = set(chatNames)-{'Shadow'}

print(chatNames)