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olbrichj/rotFinal.swift

Last active May 3, 2018 21:34
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rotFinal.swift
func rotFinal(msg: String, key: String, op: (UInt32, UInt32) -> UInt32) -> String {
return String(zip(msg.unicodeScalars.map{$0.value}, String(repeating: key, count: (msg.count / key.count) + 1)
.unicodeScalars.map{$0.value})
.map{Character(UnicodeScalar(op($0.0, $0.1))!)})
}
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