22 lines
582 B
Python
22 lines
582 B
Python
from functools import reduce
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def yield_numbers(line: str, target: int):
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nums = {}
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turn = 0
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last_spoken = 0
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for starting in map(int, line.split(",")):
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nums[last_spoken] = turn
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turn += 1
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last_spoken = starting
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yield turn, last_spoken, nums
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for t in range(turn, target):
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n = t - nums[last_spoken] if last_spoken in nums else 0
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nums[last_spoken] = t
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last_spoken = n
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yield t+1, last_spoken, nums
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def get_target(line: str, target: int):
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return reduce(lambda a, b: b, yield_numbers(line, target))
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