Find-Maximum-Profit-SLOW.swift

// Run in an Xcode Playground

let prices: [Double] = [6,0,-1,10,11,12,1,5,200,-2,200]

func solution(prices: [Double]) -> Double {
    var possibleOutcomes: [Double] = []
    prices.enumerated().forEach { tuple in
        let index = tuple.offset
        let initialPrice = tuple.element
        let pricesAfterInvestment = prices.suffix(from: index)
        pricesAfterInvestment.forEach { finalPrice in
            possibleOutcomes.append(finalPrice - initialPrice)
        }
    }
    return possibleOutcomes.max() ?? 0
}

solution(prices: prices)