Pascal Lais
7928680a02
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72 lines
1.8 KiB
Python
72 lines
1.8 KiB
Python
#!/usr/bin/env python3
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from pathlib import Path
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def fold(i, dots):
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new_dots = []
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if i[0] == 'x':
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for d in dots:
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n = (i[1] - abs(d[0] - i[1]), d[1])
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if d[0] != i[1] and n not in new_dots:
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new_dots.append(n)
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elif i[0] == 'y':
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for d in dots:
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n = (d[0], i[1] - abs(d[1] - i[1]))
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if d[1] != i[1] and n not in new_dots:
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new_dots.append(n)
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return new_dots
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def part_1(input):
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result = 0
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dots = []
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instructions = []
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for line in input:
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if ',' in line:
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x, y = line.strip().split(',')
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dots.append((int(x), int(y)))
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elif 'fold along' in line:
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d, c = line.strip().split()[-1].split('=')
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instructions.append([d, int(c)])
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dots = fold(instructions.pop(0), dots)
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result = len(dots)
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print("Part 1 result:", result)
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def part_2(input):
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result = 0
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dots = []
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instructions = []
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for line in input:
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if ',' in line:
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x, y = line.strip().split(',')
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dots.append((int(x), int(y)))
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elif 'fold along' in line:
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d, c = line.strip().split()[-1].split('=')
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instructions.append([d, int(c)])
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while len(instructions):
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dots = fold(instructions.pop(0), dots)
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max_x = 0
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max_y = 0
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for d in dots:
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max_x = max(max_x, d[0] + 1)
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max_y = max(max_y, d[1] + 1)
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print("Part 2 result:")
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for y in range(max_y):
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for x in range(max_x):
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if (x, y) in dots:
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print('#', end='')
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else:
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print(' ', end='')
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print()
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input = list()
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p = Path(__file__).with_name('input.txt')
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with open(p) as f:
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input = f.readlines()
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part_1(input)
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part_2(input)
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