30 lines
546 B
Python
30 lines
546 B
Python
import re
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with open('input') as f:
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landscape = [row.strip() for row in f]
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count = 0
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i, j = 0, 0
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l = len(landscape[0])
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while i<len(landscape):
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if landscape[i][j]=='#':
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count += 1
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i += 1
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j = (j+3)%l
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print(count)
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counts = []
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for dx, dy in [(1,1), (3,1), (5,1), (7,1), (1, 2)]:
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count = 0
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i, j = 0, 0
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l = len(landscape[0])
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while i<len(landscape):
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if landscape[i][j]=='#':
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count += 1
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i += dy
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j = (j+dx)%l
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counts.append(count)
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from math import prod
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print(prod(counts))
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