Download Populating Next Right Pointers in Each Node.py
# Definition for binary tree with next pointer. # class TreeLinkNode(object): # def __init__(self, x): # self.val = x # self.left = None # self.right = None # self.next = None class Solution(object): def connect(self, root): """ :type root: TreeLinkNode :rtype: nothing """ if root is None: return nodes = [root] while len(nodes) != 0: next_step =  last = None for node in nodes: if last is not None: last.next = node if node.left is not None: next_step.append(node.left) if node.right is not None: next_step.append(node.right) last = node nodes = next_step
Leetcode 116 Populating Next Right Pointers in Each Node problem solution in python3 with explanation. This is the best place to expand your knowledge and get prepared for your next interview.
self.val = x
self.left = None
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