Actually

Contribute.swift

@@ -29,8 +29,7 @@ extension Dictionary { //From SwiftCheck
 extension Array {
 
 	func separated() -> Array<(Element, Element)> {
-		let ordinals = [Int](1 ... self.count)
-		let withIndex = Zip2Sequence(ordinals, self)
+		let withIndex: [(Int,Element)] = self.enumerate().map{ ($0.0 + 1, $0.1) }
 
 		let separated: ([Element], [Element]) = withIndex.reduce(([],[])) { acc, elem in
 			let (ind, value) = elem