// Question 1
let number = 16
// should return 9

//Create an array
// Push number into array
// Take last number
// Put number to string
// Split
// Square each digit
// Combine the values
// Check if new value is in array
// If yes, push then return length - if no, push number then start over

function strangeSequence(number){
  countArray = []
  countArray.push(number)
  let newNumber = 0
  while (countArray.find(number => number === newNumber) === undefined){
    newNumber = 0
    let lastNumberDigits = countArray[countArray.length - 1].toString().split("")
    for (let i=0; i<lastNumberDigits.length; i++){
      newNumber += Math.pow(parseInt(lastNumberDigits[i]), 2)
    }
    if (countArray.find(number => number === newNumber) === undefined){
      countArray.push(newNumber)
      newNumber = 0
    }
    else if (countArray.find(number => number === newNumber) !== undefined){
      countArray.push(newNumber)
      return countArray.length
    }
  }
}



// Question 2

// const array1 = [5, 5, 2, 0, 9, 3, 2, 4]
// const array2 = [5, 1, 8, 4, 9, 2, 0, 0]
// let array3 = [3]
// let array4 = [8]
// let array6 = [4, 2, 1, 8, 3]
// let array7 = [8, 3, 0, 1, 6]
// should return 21

function largeLock(array1, array2){
  numberofrotations = 0
  for (let i=0; i<array1.length; i++){
    for (let k=0; k<array2.length; k++){
      if (array1[i] !== array2[k]){
        numberofrotations += Math.abs(array1[i] - array2[k])
        i++
      }
      else {
        i++
      }
    }
  }
  return numberofrotations
}

// Question 3

const array1 = ["*", "#", "+"]
const array2 = ["+", "i", "@"]
const characterset = ['!', '+', '*', ')', 'i', '=', '@', '#', '&']
// should return 9

function largeLock(array1, array2, characterset){
  numberofrotations = 0
  for (let i=0; i<array1.length; i++){
    for (let k=0; k<array2.length; k++){
      if (array1[i] !== array2[k]){
        numberofrotations += Math.abs((characterset.indexOf(array1[i]) + 1) - (characterset.indexOf(array2[k]) +1))
        i++
      }
      else {
        i++
      }
    }
  }
  return numberofrotations
}