21 lines
343 B
Python
21 lines
343 B
Python
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#!/usr/bin/env python3
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import aoc
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import itertools
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rawinput = aoc.read_input(5)
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instructions = list(map(lambda x: int(x), rawinput.splitlines()))
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ilen = len(instructions)
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pos = 0
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for i in itertools.count(1):
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v = instructions[pos]
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instructions[pos] += 1
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pos += v
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if pos < 0 or pos >= ilen:
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print(i)
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exit()
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