def isPalindrome(x: Int): Boolean = {

    val original = x.toString
    val reversed = original.reverse

    original == reversed
}


val result1 = isPalindrome(121)
println(result1) // Should print: true

val result2 = isPalindrome(-121)
println(result2) // Should print: false

val result3 = isPalindrome(10)
println(result3) // Should print: false

val result4 = isPalindrome(1221)
println(result4) // Should print: true

def reverseString(s: Array[Char]): Array[Char] = {
  for (i <- 0 until s.length / 2) {
    // Hint: Use your swap logic here
    val temp = s(i)
    s(i) = s(s.length - 1 - i)
    s(s.length - 1 - i) = temp

  }
  s // Return the modified array
}

val result = reverseString(Array('H', 'a', 'n', 'n', 'a', 'h'))
println(result.mkString(", ")) // Should print: h, a, n, n, a, H

def twoSum(nums: Array[Int], target: Int): Array[Int] = {
 for(i <- 0 until nums.length) {
   for(j <- i + 1 until nums.length) {
     if(nums(i) + nums(j) == target) {
        return Array(i,j)
     }
   }
 }
 Array()
}

val result = twoSum(Array(3, 2, 4), 6)
println(result.mkString(", ")) // Should print: 1, 2