Created
April 10, 2018 00:55
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Shuffle an array in Swift
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| func randomizeArray<T>(_ arr: inout Array<T>) -> Void { | |
| let maxIndex = arr.count - 1 | |
| for i in 0...maxIndex { | |
| arr.swapAt(i, Int(arc4random_uniform(UInt32(maxIndex + 1)))) | |
| } | |
| } |
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Based on Fisher-Yates shuffling algorithm