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25 lines
459 B
Python
25 lines
459 B
Python
def problem_p00322(input_data):
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import itertools
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u = [1, 2, 3, 4, 5, 6, 7, 8, 9]
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a = 0
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n = list(map(int, input_data.split()))
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for x in itertools.permutations(u):
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f = 0
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for i in range(9):
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if n[i] != -1 and n[i] != x[i]:
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f = 1
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if f:
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continue
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if x[0] + x[2] + x[5] - x[8] + (x[1] + x[4] - x[7]) * 10 + (x[3] - x[6]) * 100 == 0:
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a += 1
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return a
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