Szyfrująca

cypher.py

#!/usr/bin/python
# -*- coding: UTF-8 -*-
# code from Nircek's gist "Szyfrująca" https://gist.github.com/Nircek/9b4df55d89fa040c2eabb81b2060db2f
# licensed under MIT license

# MIT License

# Copyright (c) 2018 Nircek

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# Program do szyfrowania tą samą metodą, co w grze Cypher o nazwie TRASPOSITION PUZZLE 08 [ADVANCED] 

import math

def x(s=None):
  # 0. get text from user
  # this program was written by Nircek
  if s == None:
    s = input()
  s = str(s)
  # 1. UPPER CASE
  # THIS PROGRAM WAS WRITTEN BY NIRCEK
  s = s.upper()
  # 2. delete spaces
  # THISPROGRAMWASWRITTENBYNIRCEK
  s = s.replace(' ', '')
  # 3. length
  # 29
  l = len(s)
  # 4. ceil(sqrt(29))
  # 6
  x = math.ceil(math.sqrt(l))
  # 5. ceil(29/6)
  # 5
  while True:
    y = math.ceil(l/x)
  # 6. if (6*5 mod 4 != 2) increment 6 and goto 5
  # false
    if x*y % 4 == 2:
      break
    x += 1
  # 7. expand string with 'Z' chars to create 6*5 length string
  # THISPROGRAMWASWRITTENBYNIRCEKZ
  s += 'Z' * (x*y-l)
  l = len(s)
  # 8. create new list with 5 stings
  # ['','','','','']
  r = [''] * y
  # 9. append next letters to i%5 list
  # ['TRMRNR','HOWIBC','IGATYE','SRSTNK','PAWEIZ']
  for i in range(l):
    r[i%y] += s[i]
  # 10. join its elements
  # TRMRNRHOWIBCIGATYESRSTNKPAWEIZ
  r = ''.join(r)
  # 11. add space behind every 4 chars
  # TRMR NRHO WIBC IGAT YESR STNK PAWE IZ
  rs = ''
  for i in range(l//4):
    rs += r[i*4:(i+1)*4] + ' '
  rs += r[-2:]
  return rs

print(x())