my advent of code 2021 solutions
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import sys
class img:
def __init__(self):
self.y = []
def addline(self, line):
self.y.append(line)
def get_num(self,y,x):
number=''
if y != 0 and x != 0: number += self.y[y - 1][x - 1]
else: number += '.'
if y !=0: number += self.y[y - 1][x]
else: number += '.'
if y != 0 and x != len(self.y[0]) - 1: number += self.y[y - 1][x + 1]
else: number += '.'
if x != 0: number += self.y[y][x - 1]
else: number += '.'
number += self.y[y][x]
if x != len(self.y[0]) - 1: number += self.y[y][x + 1]
else: number += '.'
if y != len(self.y) - 1 and x != 0: number += self.y[y + 1][x - 1]
else: number += '.'
if y != len(self.y) - 1: number += self.y[y + 1][x]
else: number += '.'
if y != len(self.y) - 1 and x != len(self.y[0]) - 1: number += self.y[y + 1][x + 1]
else: number += '.'
number = number.replace('.', '0')
number = number.replace('#', '1')
return (int(number, 2))
def enhance(self):
new_image = []
self.y.insert(0, '.'*len(self.y[0]))
self.y.append('.'*len(self.y[0]))
for i in range(len(self.y)):
self.y[i] = '.' + self.y[i] + '.'
for i in range(len(self.y)):
new_line = ''
for t in range(len(self.y[i])):
num = self.get_num(i,t)
new_line += algorithm[num]
new_image.append(new_line)
self.y = new_image.copy()
def count(self):
counter = 0
for f in self.y:
for g in f:
if g == '#':
counter += 1
return(counter)
image = img()
with open(sys.argv[1], 'r') as f:
toggle = False
for g in f.readlines():
g = g.strip()
if g == '':
toggle = True
if not toggle:
algorithm = g
if toggle and g != '':
image.addline(g)
image.enhance()
image.enhance()
print(image.count())