Ben's 18.11.14-iOS4CodeChallenge

// assumption:
//  - I will only get passed ints
//  - I can get passed both negative and positive ints
//
//

import Foundation

// main funct
func expandedNumber(_ number: Int) -> [Int]{
    
    // instantiate vars
    var divResult: Int = number
    var remainder: Int
    var digitCount: Int = 0
    var componentArray: [Int] = []

    // catch input of zero here and return
    if (divResult == 0){
        return [0]
    }
    // while the result of integer division is greater than absolute value of 1
    // add new components to the array
    while (divResult >= 1 || divResult <= -1){
        
        // get the coefficient of the digit
        remainder = divResult % 10
        
        // insert coeffient + digit specific power term into from of the component array
        componentArray.insert(Int(Double(remainder) * pow(10.0, Double(digitCount))), at: 0)
        
        // prepare to handle the next coefficient and power term
        divResult = divResult / 10
        digitCount += 1
        
    }
    
    return componentArray
    
    
}


// test cases
var testCases = [43443,341,562,1,2,0001,-00001,0,102,32,23424, -1, -2, -51, -5051,-99990]

// run func on test cases
for test in testCases {
    print(expandedNumber(test))
}