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33 lines
1.0 KiB
33 lines
1.0 KiB
1 month ago
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import re
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lines = [l for l in open("input.txt", 'r').read().splitlines()]
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linesVert, linesDiag1, linesDiag2 = [], [], []
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count, count2, width = 0, 0, len(lines[0])
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for i in range(width):
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string, string2, string3 = "", "", ""
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for j in range(len(lines)):
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string += lines[j][i]
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string2 += lines[j][(i+j)%width]
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string3 += lines[width-j-1][(i+j)%width]
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linesDiag1.append(string2[:width - i])
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linesDiag1.append(string2[width - i:])
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linesDiag2.append(string3[:width - i])
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linesDiag2.append(string3[width - i:])
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linesVert.append(string)
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for l in lines + linesVert + linesDiag1 + linesDiag2:
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count += len(re.findall(r"(?=(XMAS|SAMX))", l))
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for i in range(width-2):
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for j in range(len(lines)-2):
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diag1 = lines[j][i] + lines[j+1][i+1] + lines[j+2][i+2]
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diag2 = lines[j+2][i] + lines[j+1][i+1] + lines[j][i+2]
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if re.search(r"MAS|SAM", diag1) != None and re.search(r"MAS|SAM", diag2) != None:
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count2 += 1
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print(count)
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print(count2)
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