30 lines
742 B
Swift
30 lines
742 B
Swift
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//
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// File.swift
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//
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//
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// Created by Max Nuding on 05.12.21.
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//
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import Foundation
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import Runner
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struct Day07: Runnable {
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let inputPath: String
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func run() {
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let input = try! String(contentsOfFile: inputPath)
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let horizontalPositions = input
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.trimmingCharacters(in: .newlines)
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.components(separatedBy: ",")
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.map { Int($0)! }
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run(horizontalPositions: horizontalPositions)
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}
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func run(horizontalPositions: [Int]) {
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let median = horizontalPositions.sorted()[horizontalPositions.count / 2]
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let distancesToMedian = horizontalPositions.map { abs(median - $0) }
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let toalFuel = distancesToMedian.reduce(0,+)
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print(toalFuel)
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}
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}
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