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12 lines
328 B
12 lines
328 B
10 months ago
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input = open("input.txt", 'r').read().splitlines()
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instructions = input[0]
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nodes = {l.split()[0]: (l.split()[2][1:-1], l.split()[3][:-1]) for l in input[2:]}
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steps = 0
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node = 'AAA'
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while node != 'ZZZ':
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node = nodes[node][0] if instructions[steps % len(instructions)] == 'L' else nodes[node][1]
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steps += 1
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print(steps)
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