Top Trees Interview Questions

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!

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Problem Title

Difficulty

Avg Time to solve

Attempted

Count Univalue Subtrees

69

Moderate

30 mins

1612

Binary Tree Pruning

23

Moderate

20 mins

662

Symmetric Tree

40

Easy

20 mins

4335

Delete Leaf Nodes With Value X

15

Moderate

27 mins

597

Minimum Depth Of Binary Tree

11

Moderate

20 mins

673

Maximum Width In Binary Tree

20

Moderate

38 mins

2748

Reverse Level Order Traversal

30

Moderate

30 mins

2563

Right View

28

Moderate

35 mins

2249

Boundary Traversal of Binary Tree

143

Hard

20 mins

9248

Level Order Traversal

45

Easy

15 mins

4488

Check Identical Trees

20

Moderate

20 mins

3077

Partial BST

43

Moderate

25 mins

7223

Convert Bst To The Greater Sum Tree

10

Moderate

30 mins

948

Distance between two nodes of a Tree

16

Moderate

25 mins

1133

Print Nodes at Distance K From a Given Node

13

Hard

20 mins

838

Convert binary tree to mirror tree

18

Easy

15 mins

1508

Maximum Level Sum

2

Easy

15 mins

375

Cousins of Given Node in Binary Tree

5

Moderate

10 mins

178

Subtree of Another Tree

30

Easy

10 mins

1527

Size of Largest BST in Binary Tree

60

Easy

10 mins

4134

Preorder traversal of a BST

18

Moderate

15 mins

3036

Serialize and Deserialize Binary Tree

27

Hard

15 mins

1084

Delete Node In BST

12

Moderate

10 mins

818

Kth smallest node in BST

19

Moderate

15 mins

2206

Closest Binary Search Tree Value

9

Easy

15 mins

574

Count Univalue Subtrees

Moderate

69 upvotes

Binary Tree Pruning

Moderate

23 upvotes

Symmetric Tree

Easy

40 upvotes

Delete Leaf Nodes With Value X

Moderate

15 upvotes

Minimum Depth Of Binary Tree

Moderate

11 upvotes

Maximum Width In Binary Tree

Moderate

20 upvotes

Reverse Level Order Traversal

Moderate

30 upvotes

Right View

Moderate

28 upvotes

Boundary Traversal of Binary Tree

Hard

143 upvotes

Level Order Traversal

Easy

45 upvotes

Check Identical Trees

Moderate

20 upvotes

Partial BST

Moderate

43 upvotes

Convert Bst To The Greater Sum Tree

Moderate

10 upvotes

Distance between two nodes of a Tree

Moderate

16 upvotes

Print Nodes at Distance K From a Given Node

Hard

13 upvotes

Convert binary tree to mirror tree

Easy

18 upvotes

Maximum Level Sum

Easy

2 upvotes

Cousins of Given Node in Binary Tree

Moderate

5 upvotes

Subtree of Another Tree

Easy

30 upvotes

Size of Largest BST in Binary Tree

Easy

60 upvotes

Preorder traversal of a BST

Moderate

18 upvotes

Serialize and Deserialize Binary Tree

Hard

27 upvotes

Delete Node In BST

Moderate

12 upvotes

Kth smallest node in BST

Moderate

19 upvotes

Closest Binary Search Tree Value

Easy

9 upvotes

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