Top Trees Interview Questions
Topics
Company
Difficulty
Problem Title
Difficulty
Avg Time to solve
Attempted
Unival Trees
6
Moderate
30 mins
140
Binary Tree Pruning
7
Easy
20 mins
128
Tree Symmetricity
1
Easy
20 mins
98
Delete Leaf Nodes with Value X
4
Easy
27 mins
73
Minimum depth in a Binary Tree
3
Easy
20 mins
52
Maximum Width In Binary Tree
3
Moderate
38 mins
131
Reverse Level Order Traversal
8
Moderate
30 mins
134
Right View
1
Moderate
35 mins
81
Boundary Traversal
12
Hard
20 mins
114
Level Order Traversal
5
Easy
15 mins
98
Identical Trees
2
Easy
20 mins
95
Validate BST
3
Moderate
25 mins
252
Convert Bst To The Greater Sum Tree
2
Moderate
30 mins
59
Distance between two nodes of a Tree
2
Moderate
25 mins
55
Print Nodes at Distance K From a Given Node
2
Moderate
20 mins
54
Convert binary tree to mirror tree
4
Easy
15 mins
60
Maximum Level Sum
1
Easy
15 mins
39
Cousins of Given Node in Binary Tree
2
Easy
10 mins
36
Subtree of Another Tree
5
Easy
10 mins
73
Largest BST subtree
3
Easy
10 mins
58
Preorder traversal of a BST
2
Moderate
15 mins
39
Serialize/Deserialize The Binary Tree
3
Easy
15 mins
48
Delete Node In BST
2
Moderate
10 mins
30
Kth smallest node in BST
2
Moderate
15 mins
63
Closest element in BST
2
Easy
15 mins
45
Unival Trees NEW
Moderate
6 upvotes
Binary Tree Pruning NEW
Easy
7 upvotes
Tree Symmetricity NEW
Easy
1 upvote
Delete Leaf Nodes with Value X NEW
Easy
4 upvotes
Minimum depth in a Binary Tree NEW
Easy
3 upvotes
Maximum Width In Binary Tree NEW
Moderate
3 upvotes
Reverse Level Order Traversal NEW
Moderate
8 upvotes
Right View NEW
Moderate
1 upvote
Boundary Traversal NEW
Hard
12 upvotes
Level Order Traversal NEW
Easy
5 upvotes
Identical Trees NEW
Easy
2 upvotes
Validate BST NEW
Moderate
3 upvotes
Convert Bst To The Greater Sum Tree NEW
Moderate
2 upvotes
Distance between two nodes of a Tree NEW
Moderate
2 upvotes
Print Nodes at Distance K From a Given Node NEW
Moderate
2 upvotes
Convert binary tree to mirror tree NEW
Easy
4 upvotes
Maximum Level Sum NEW
Easy
1 upvote
Cousins of Given Node in Binary Tree NEW
Easy
2 upvotes
Subtree of Another Tree NEW
Easy
5 upvotes
Largest BST subtree NEW
Easy
3 upvotes
Preorder traversal of a BST NEW
Moderate
2 upvotes
Serialize/Deserialize The Binary Tree NEW
Easy
3 upvotes
Delete Node In BST NEW
Moderate
2 upvotes
Kth smallest node in BST NEW
Moderate
2 upvotes
Closest element in BST NEW
Easy
2 upvotes
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