Codes de la vidéo

from random import randint

def grilleVide():
 grille = []
 for i in range(6):
  ligne = []
  for j in range(6): ligne.append('⬛')
  grille.append(ligne)
 return grille

def rotate(m, n):
 for _ in range(n): m = list(zip(*m))[::-1]
 return m

def afficher(g):
 for l in range(6): print(''.join(g[l]))

def creerGrille():
    grille = grilleVide()
    m = [[6 * l + c for c in range(6)] for l in range(6)]
    for c in range(3):
     for l in range(3):
      m = rotate(m, randint(0, 3))
      pos = m[l][c]
      x, y = pos % 6, pos // 6      
      grille[y][x] = '⬜'
    return grille
    
def completeEtoiles(phrase):
 return phrase + "*" * (9 - len(phrase) % 9)

def listeTrous(g):
 trous = []
 for l in range(6):
  for c in range(6):
   if g[l][c] == '⬜': trous.append(6 * l + c)
 return trous  

def chiffrer(phrase, grille):
 phrase = completeEtoiles(phrase)
 chiffre = grilleVide()
 trous = listeTrous(grille)
 for i, v in enumerate(phrase):
  pos = i % 9 
  if pos == 0 and i > 0:
   grille = rotate(grille, 1)
   trous = listeTrous(grille)
  x, y = trous[pos] % 6, trous[pos] // 6
  if v == "*": v = chr(randint(65, 90))
  chiffre[y][x] = v
 return chiffre 

def dechiffrer(crypte, grille):
 clair = ''
 trous = listeTrous(grille)
 for i in range(36):
  pos = i % 9 
  if pos == 0 and i > 0:
   grille = rotate(grille, 1)
   trous = listeTrous(grille)
  x, y = trous[pos] % 6, trous[pos] // 6
  clair += crypte[y][x]
 return clair
 
grille = creerGrille()        
afficher(grille)
phrase='RENDEZVOUSAQUINZEHEURESPLACELECLERC'
crypte = chiffrer(phrase, grille)
afficher(crypte)
clair = dechiffrer(crypte, grille)
print(clair)