30 lines
641 B
Python
30 lines
641 B
Python
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#!/usr/bin/env python
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# 2023 - Advent Of Code 8
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# file = 'input_example.txt'
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file = 'input.txt'
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# pylint: disable=consider-using-with
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input_lines = [line.strip('\n') for line in open(file, encoding="utf-8")]
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directions = input_lines[0]
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print(directions)
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nodes = {}
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for l in input_lines[2:]:
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k, v = l.split(' = ')
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nodes[k] = v[1:-1].split(', ')
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cur_node = 'AAA'
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count = 0
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while cur_node != 'ZZZ':
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# print(cur_node)
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if directions[count % len(directions)] == 'L':
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cur_node = nodes[cur_node][0]
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elif directions[count % len(directions)] == 'R':
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cur_node = nodes[cur_node][1]
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count += 1
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print(count)
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