switched rounding function
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1449da6551
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@ -30,8 +30,8 @@ struct Day07: Runnable {
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func runB(horizontalPositions: [Int]) {
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func runB(horizontalPositions: [Int]) {
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let average = Double(horizontalPositions.reduce(0, +)) / Double(horizontalPositions.count)
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let average = Double(horizontalPositions.reduce(0, +)) / Double(horizontalPositions.count)
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let roundedDown = Int(floor(average))
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let roundedDown = Int(average.rounded(.up))
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let roundedUp = Int(ceil(average))
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let roundedUp = Int(average.rounded(.down))
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let fuelForRoundedDown = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedDown)
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let fuelForRoundedDown = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedDown)
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let fuelForRoundedUp = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedUp)
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let fuelForRoundedUp = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedUp)
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print(min(fuelForRoundedDown, fuelForRoundedUp))
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print(min(fuelForRoundedDown, fuelForRoundedUp))
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