Created
February 12, 2017 22:16
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| let str = "acxz" | |
| func isFunny(_ s: AnySequence<UInt8>) -> Bool { | |
| let n1: [Int] = zip(s.dropFirst(), s).map { Int($0)-Int($1) } | |
| let n2: [Int] = zip(s.reversed().dropFirst(), s.reversed()).map { Int($1)-Int($0) } | |
| return n1 == n2 | |
| } | |
| isFunny(AnySequence(str.utf8)) |
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