34 lines
767 B
Swift
34 lines
767 B
Swift
import Foundation
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var input = loadData(day: 6)
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let scanner = Scanner(string: input)
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scanner.charactersToBeSkipped = nil
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var count = 0
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var countB = 0
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var currentGroup: [Character:Int] = [:]
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var peopleInGroup = 0
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repeat {
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guard let answers = scanner.scanUpToString("\n") else { fatalError() }
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peopleInGroup += 1
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_ = scanner.scanString("\n")
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for answer in answers {
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currentGroup[answer, default: 0] += 1
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}
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if scanner.isAtEnd || scanner.scanString("\n") != nil {
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count += currentGroup.count
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countB += currentGroup.lazy.filter { $1 == peopleInGroup }.count
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currentGroup.removeAll(keepingCapacity: true)
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peopleInGroup = 0
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}
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} while !scanner.isAtEnd
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print("count", count)
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print("part 2", countB)
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