         
         return false
     }
-    //MARK - 43. Multiply Strings
+    //MARK: - 43. Multiply Strings
     func multiply(_ num1: String, _ num2: String) -> String {
         if num1 == "0" || num2 == "0" {
             return "0"

        } while num >= 1
        return result
    }
    //MARK - 148. Sort List
    func sortList(_ head: ListNode?) -> ListNode? {
        if head == nil {
            return nil

        }
        return arr[amount] > amount ? -1 : arr[amount]
    }
    //MARK: - 48. Rotate Image
    func rotate(_ matrix: inout [[Int]]) {
        let count = matrix.count
        for i in 0 ..< count/2 {
            for j in i ..< count - i - 1 {
                let tmp = matrix[i][j]
                matrix[i][j] = matrix[count - 1 - j][i]
                matrix[count - 1 - j][i] = matrix[count - 1 - i][count - 1 - j]
                matrix[count - 1 - i][count - 1 - j] = matrix[j][count - 1 - i]
                matrix[j][count - 1 - i] = tmp;
            }
        }
    }
    func rotateBest(_ matrix: inout [[Int]]) {
        matrix.reverse()
        for i in 0 ..< matrix.count {
            for j in (i + 1) ..< matrix[i].count {
                (matrix[i][j], matrix[j][i]) = (matrix[j][i], matrix[i][j])
            }
        }
    }
    
    
}
