Top Trees Interview Questions
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Check out the top trees and graphs data structure interview questions asked in interviews of top tech companies like Amazon, only on CodeStudio. Start Practicing now!
Problem Title
Difficulty
Avg Time to solve
Attempted
Flatten Binary Tree to Linked List
6
Moderate
25 mins
564
Path Sum lll
5
Hard
50 mins
76
Range Sum of BST
0
Easy
20 mins
111
BST to sorted DLL
17
Moderate
50 mins
184
Populating Next Right Pointers In Each Node
2
Moderate
25 mins
90
Merge Two Binary Trees
2
Easy
15 mins
112
Convert Sorted Array to BST
5
Easy
15 mins
314
Print Binary Tree
7
Moderate
30 mins
12
Minimum Cost Tree From Leaf Nodes
3
Hard
20 mins
52
Distributing Coins
2
Moderate
45 mins
63
Maximum Binary Tree
0
Moderate
10 mins
33
Construct Binary Tree from Inorder and Postorder Traversal
10
Moderate
25 mins
399
Unique Binary Search Trees
3
Moderate
20 mins
76
Ninja And The Tree
2
Hard
45 mins
24
Populating Next Right Pointers in Each Node II
1
Moderate
20 mins
40
Number Of Good Leaf Nodes Pairs
3
Easy
15 mins
21
BALLOONS GAME
3
Easy
10 mins
116
Break The Tree
2
Moderate
30 mins
38
Insert Into A Binary Search Tree
7
Easy
20 mins
221
Create a binary tree from postorder and preorder traversal
5
Moderate
15 mins
35
Lowest Common Ancestor of a Binary Tree III
2
Moderate
25 mins
109
Delete Nodes And Return Forest
4
Moderate
20 mins
28
Equal Tree Partition
3
Moderate
15 mins
111
House Robber III
0
Moderate
35 mins
32
Check Whether Binary tree Is Complete
0
Moderate
25 mins
47
Flatten Binary Tree to Linked List
Moderate
6 upvotes
Path Sum lll
Hard
5 upvotes
Range Sum of BST
Easy
0 upvotes
BST to sorted DLL
Moderate
17 upvotes
Populating Next Right Pointers In Each Node
Moderate
2 upvotes
Merge Two Binary Trees
Easy
2 upvotes
Convert Sorted Array to BST
Easy
5 upvotes
Print Binary Tree
Moderate
7 upvotes
Minimum Cost Tree From Leaf Nodes
Hard
3 upvotes
Distributing Coins
Moderate
2 upvotes
Maximum Binary Tree
Moderate
0 upvotes
Construct Binary Tree from Inorder and Postorder Traversal
Moderate
10 upvotes
Unique Binary Search Trees
Moderate
3 upvotes
Ninja And The Tree
Hard
2 upvotes
Populating Next Right Pointers in Each Node II
Moderate
1 upvote
Number Of Good Leaf Nodes Pairs
Easy
3 upvotes
BALLOONS GAME
Easy
3 upvotes
Break The Tree
Moderate
2 upvotes
Insert Into A Binary Search Tree
Easy
7 upvotes
Create a binary tree from postorder and preorder traversal
Moderate
5 upvotes
Lowest Common Ancestor of a Binary Tree III
Moderate
2 upvotes
Delete Nodes And Return Forest
Moderate
4 upvotes
Equal Tree Partition
Moderate
3 upvotes
House Robber III
Moderate
0 upvotes
Check Whether Binary tree Is Complete
Moderate
0 upvotes
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