26 lines
469 B
Python
Executable file
26 lines
469 B
Python
Executable file
#!/usr/bin/python
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from sys import argv
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mem = [{}, {}]
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def flip(x, y):
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if y not in mem[x]:
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mem[x][y] = 1
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else:
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mem[x][y] = 1 - mem[x][y]
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return mem[x][y]
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with open(argv[1]) as f:
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lines = f.readlines()
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while True:
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for line in lines:
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l = list(map(int, line.split()))
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x = l[0]
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for i in range(1, len(l)):
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x = flip(x, l[i])
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print(x)
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if 0 not in mem[0] or mem[0][0] == 0:
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exit()
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