AdvancedFunctionalStringReverser.swift

func reverseAndRepeatString(stringToReverse: String, numberOfReverses: Int) -> String {
	let reverseString: () -> String = { transformString(stringToReverse, transformation: { String($0.characters.reverse()) }) }
	let repeatString: (() -> String) -> String = {
		var repeated = ""
		for _ in 1...numberOfReverses {
			repeated += $0()
		}
		return repeated
	}

	return applyResultsOfClosure(reverseString, toSecondClosure: repeatString)
}

func transformString(stringToTransform: String, transformation: (String) -> String) -> String {
	return transformation(stringToTransform)
}

func applyResultsOfClosure<T, U>(firstClosure: T, toSecondClosure: T -> U) -> U {
	return toSecondClosure(firstClosure)
}