Problem Leetcode 938: Range sum BST Level: Easy Link Range Sum of BST - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com My Approach # Definition for a binary tree node. # class TreeNode: # def __init__(self, val=0, left=None, right=None): # self.val = val # self.left = left # self...
Problem Leetcode 107: Binary Tree Level order Traversal II Level: Medium Link Binary Tree Level Order Traversal II - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com My Approach BFS Traversal with each tree level tracked # Definition for a binary tree node. # class TreeNode: # def _..
Leetcode 257 Binary tree paths Level: Easy Link Binary Tree Paths - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com My approach Classic dfs problem with a tree data structure Check if a root has left or right leaf If either the left or right leaf exists: perform dfs recursively wit..
