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

Count Univalue Subtrees NEW

42

Moderate

30 mins

863

Binary Tree Pruning NEW

20

Moderate

20 mins

361

Symmetric Tree NEW

14

Easy

20 mins

1342

Delete Leaf Nodes With Value X NEW

11

Moderate

27 mins

335

Minimum Depth Of Binary Tree NEW

5

Moderate

20 mins

331

Maximum Width In Binary Tree NEW

7

Moderate

38 mins

730

Reverse Level Order Traversal NEW

21

Moderate

30 mins

1420

Right View NEW

8

Moderate

35 mins

932

Boundary Traversal of Binary Tree NEW

64

Hard

20 mins

2748

Level Order Traversal NEW

18

Easy

15 mins

1256

Check Identical Trees NEW

7

Moderate

20 mins

712

Partial BST NEW

16

Moderate

25 mins

2195

Convert Bst To The Greater Sum Tree NEW

6

Moderate

30 mins

584

Distance between two nodes of a Tree NEW

11

Moderate

25 mins

640

Print Nodes at Distance K From a Given Node NEW

5

Hard

20 mins

352

Convert binary tree to mirror tree NEW

15

Easy

15 mins

642

Maximum Level Sum NEW

1

Easy

15 mins

248

Cousins of Given Node in Binary Tree NEW

4

Moderate

10 mins

93

Subtree of Another Tree NEW

8

Easy

10 mins

988

Size of Largest BST in Binary Tree NEW

18

Easy

10 mins

978

Preorder traversal of a BST NEW

8

Moderate

15 mins

751

Serialize and Deserialize Binary Tree NEW

13

Hard

15 mins

243

Delete Node In BST NEW

3

Moderate

10 mins

214

Kth smallest node in BST NEW

6

Moderate

15 mins

587

Closest element in BST NEW

6

Easy

15 mins

333

Count Univalue Subtrees NEW

Moderate

42 upvotes

Binary Tree Pruning NEW

Moderate

20 upvotes

Symmetric Tree NEW

Easy

14 upvotes

Delete Leaf Nodes With Value X NEW

Moderate

11 upvotes

Minimum Depth Of Binary Tree NEW

Moderate

5 upvotes

Maximum Width In Binary Tree NEW

Moderate

7 upvotes

Reverse Level Order Traversal NEW

Moderate

21 upvotes

Right View NEW

Moderate

8 upvotes

Boundary Traversal of Binary Tree NEW

Hard

64 upvotes

Level Order Traversal NEW

Easy

18 upvotes

Check Identical Trees NEW

Moderate

7 upvotes

Partial BST NEW

Moderate

16 upvotes

Convert Bst To The Greater Sum Tree NEW

Moderate

6 upvotes

Distance between two nodes of a Tree NEW

Moderate

11 upvotes

Print Nodes at Distance K From a Given Node NEW

Hard

5 upvotes

Convert binary tree to mirror tree NEW

Easy

15 upvotes

Maximum Level Sum NEW

Easy

1 upvote

Cousins of Given Node in Binary Tree NEW

Moderate

4 upvotes

Subtree of Another Tree NEW

Easy

8 upvotes

Size of Largest BST in Binary Tree NEW

Easy

18 upvotes

Preorder traversal of a BST NEW

Moderate

8 upvotes

Serialize and Deserialize Binary Tree NEW

Hard

13 upvotes

Delete Node In BST NEW

Moderate

3 upvotes

Kth smallest node in BST NEW

Moderate

6 upvotes

Closest element in BST NEW

Easy

6 upvotes

Page of 4