16 lines
261 B
Python
16 lines
261 B
Python
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#!/usr/bin/env python
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import sys
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def calc_fuel(mass: int) -> int:
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fuel = mass // 3 - 2
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return fuel + calc_fuel(fuel) if fuel > 0 else 0
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def main() -> None:
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print(sum(calc_fuel(int(l)) for l in sys.stdin))
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if __name__ == "__main__":
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main()
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