class Node:

    def __init__(self):
        self.name = ''
        self.weight = 0
        self.code = ''

    def initSet(self, name, weight):
        self.name = name
        self.weight = weight

class Node:

    def __init__(self):
        self.name = ''
        self.weight = 0
        self.code = ''

    def initSet(self, name, weight):
        self.name = name
        self.weight = weight

    def setRoot(self, root):
        self.root = root

    def setLeft(self, left):
        self.left = left

    def setRight(self, right):
        self.right = right

    def addCode(self, code):
        self.code = code + self.code

Add functions about setting the parent & children nodes and codes.
Add functions about setting the parent & children nodes and codes.

  class Node:
  
      def __init__(self):
          self.name = ''
          self.weight = 0
          self.code = ''
  
      def initSet(self, name, weight):
          self.name = name
          self.weight = weight
  
+     def setRoot(self, root):
+         self.root = root
+ 
+     def setLeft(self, left):
+         self.left = left
+ 
+     def setRight(self, right):
+         self.right = right
+ 
+     def addCode(self, code):
+         self.code = code + self.code
+ 
Add functions about setting the parent & children nodes and codes.
## Code Before:
class Node:

    def __init__(self):
        self.name = ''
        self.weight = 0
        self.code = ''

    def initSet(self, name, weight):
        self.name = name
        self.weight = weight

## Instruction:
Add functions about setting the parent & children nodes and codes.
## Code After:
class Node:

    def __init__(self):
        self.name = ''
        self.weight = 0
        self.code = ''

    def initSet(self, name, weight):
        self.name = name
        self.weight = weight

    def setRoot(self, root):
        self.root = root

    def setLeft(self, left):
        self.left = left

    def setRight(self, right):
        self.right = right

    def addCode(self, code):
        self.code = code + self.code
