troglodiet dag 11AB

# zoeken we antwoord A of B?
vraag = 'B'

# bestand lezen en in stukjes hakken:
bestand = open('input.txt', 'r')
alles = bestand.readlines()

for x in range(len(alles)):
  alles[x] = alles[x].replace('\n', '')

for x in range(10):
  alles[x] = list(alles[x])

for y in range(10):
  for x in range(10):
    alles[y][x] = int(alles[y][x])

if vraag == 'A':
  stappen = 100
if vraag == 'B':
  stappen = 300

omheen = [[-1, -1], [-1, 0], [-1, 1], [0, -1], [0, +1], [1, -1], [1, 0], [1,1]]

flitsen = 0
asynchroon = True
for stap in range(stappen):
  for y in range(10):
    for x in range(10):
      alles[y][x] += 1
  klaar = False
  while klaar == False:
    klaar = True
    for y in range(10):
      for x in range(10):
        if alles[y][x] != 'F':
          if alles[y][x] > 9:
            klaar = False
            alles[y][x] = 'F'
            flitsen += 1
            for z in range(8):
              if y+omheen[z][0] > -1 and y+omheen[z][0] < 10 and x+omheen[z][1] > -1 and x+omheen[z][1] < 10:
                if alles[y+omheen[z][0]][x+omheen[z][1]] != 'F':
                  alles[y+omheen[z][0]][x+omheen[z][1]] += 1
  if asynchroon:
    tegelijk = True
    for y in range(10):
      for x in range(10):
        if alles[y][x] != 'F':
          tegelijk = False
    if tegelijk:
      asynchroon = False
      antwoordb = stap + 1
  for y in range(10):
    for x in range(10):
      if alles[y][x] == 'F':
        alles[y][x] = 0

if vraag == 'A':
  print(flitsen)
if vraag == 'B':
  print(antwoordb)