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#	Problem	Companies
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1	Maximum Depth of Binary Tree	A A B F A Maximum Depth of Binary Tree · 8 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft Y Yahoo
2	Same Tree	A A B F A Same Tree · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
3	Balanced Binary Tree	A A F G A Balanced Binary Tree · 6 Companies A Amazon A Apple F Facebook G Google LinkedIn M Microsoft
4	Invert Binary Tree	A A G A Invert Binary Tree · 7 Companies A Amazon A Apple G Google LinkedIn M Meta M Microsoft T Twitter
5	Symmetric Tree	A A B F A Symmetric Tree · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
6	Path Sum	A A B F A Path Sum · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
7	Minimum Depth of Binary Tree	A A F A Minimum Depth of Binary Tree · 4 Companies A Amazon A Apple F Facebook LinkedIn
8	Binary Tree Inorder Traversal	A A A B A Binary Tree Inorder Traversal · 8 Companies A Adobe A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
9	Binary Tree Preorder Traversal	A A B F A Binary Tree Preorder Traversal · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
10	Binary Tree Postorder Traversal	A A B F A Binary Tree Postorder Traversal · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
11	Binary Tree Level Order Traversal	A A B B A Binary Tree Level Order Traversal · 10 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google LinkedIn M Meta M Microsoft U Uber
12	Average of Levels in Binary Tree	A A F G A Average of Levels in Binary Tree · 5 Companies A Amazon A Apple F Facebook G Google M Microsoft
13	Find Largest Value in Each Tree Row	— —
14	Binary Tree Cameras	A A F G A Binary Tree Cameras · 5 Companies A Amazon A Apple F Facebook G Google M Microsoft
15	Binary Tree Maximum Path Sum	A A B B A Binary Tree Maximum Path Sum · 11 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google LinkedIn M Meta M Microsoft O Oracle U Uber
16	Serialize and Deserialize Binary Tree	A A B B A Serialize and Deserialize Binary Tree · 10 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google LinkedIn M Microsoft U Uber Y Yahoo
17	Boundary Traversal Of Binary Tree	A A A F A Boundary Traversal Of Binary Tree · 6 Companies A Accenture A Adobe A Amazon F Flipkart M Microsoft P Paytm
18	Vertical Order Traversal of a Binary Tree	A B B F A Vertical Order Traversal of a Binary Tree · 7 Companies A Amazon B Bloomberg B ByteDance F Facebook G Goldman Sachs G Google M Microsoft
19	Recover Binary Search Tree	A F G M A Recover Binary Search Tree · 4 Companies A Amazon F Facebook G Google M Microsoft
20	Delete Nodes And Return Forest	A F G M A Delete Nodes And Return Forest · 4 Companies A Amazon F Facebook G Google M Microsoft
21	Find Duplicate Subtrees	A B F G A Find Duplicate Subtrees · 5 Companies A Amazon B ByteDance F Facebook G Google M Microsoft
22	Distribute Coins in Binary Tree	A A F G A Distribute Coins in Binary Tree · 5 Companies A Amazon A Apple F Facebook G Google M Microsoft
23	Amount of Time for Binary Tree to Be Infected	A G M M A Amount of Time for Binary Tree to Be Infected · 4 Companies A Amazon G Google M Meta M Microsoft
24	Top View Of Binary Tree	A A A F A Top View Of Binary Tree · 5 Companies A Accenture A Adobe A Amazon F Flipkart M Microsoft
25	Binary Tree Zigzag Level Order Traversal	A A B B A Binary Tree Zigzag Level Order Traversal · 8 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google LinkedIn M Microsoft
26	Binary Tree Right Side View	A A B B A Binary Tree Right Side View · 8 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google LinkedIn M Microsoft
27	Populating Next Right Pointers in Each Node	A A B F A Populating Next Right Pointers in Each Node · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft
28	Cousins in Binary Tree	A F G M A Cousins in Binary Tree · 4 Companies A Amazon F Facebook G Google M Microsoft
29	Lowest Common Ancestor of a Binary Tree	A A A B A Lowest Common Ancestor of a Binary Tree · 9 Companies A Adobe A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft O Oracle
30	Path Sum III	A A B F A Path Sum III · 6 Companies A Amazon A Apple B Bloomberg F Facebook G Google M Microsoft
31	Path Sum II	A B F G A Path Sum II · 6 Companies A Amazon B Bloomberg F Facebook G Google LinkedIn M Microsoft
32	Construct Binary Tree from Preorder and Inorder Traversal	A G M A Construct Binary Tree from Preorder and Inorder Traversal · 3 Companies A Amazon G Google M Microsoft
33	Construct Binary Tree from Inorder and Postorder Traversal	A A B F A Construct Binary Tree from Inorder and Postorder Traversal · 6 Companies A Amazon A Apple B Bloomberg F Facebook G Google M Microsoft
34	Diameter of Binary Tree	A A F G A Diameter of Binary Tree · 6 Companies A Amazon A Apple F Facebook G Google LinkedIn M Microsoft
35	Sum Root to Leaf Numbers	A A F G A Sum Root to Leaf Numbers · 5 Companies A Amazon A Apple F Facebook G Google M Microsoft
36	Count Complete Tree Nodes	A A F G A Count Complete Tree Nodes · 6 Companies A Amazon A Apple F Facebook G Google LinkedIn M Microsoft
37	Check Completeness of a Binary Tree	A B F G A Check Completeness of a Binary Tree · 5 Companies A Amazon B ByteDance F Facebook G Google M Microsoft
38	Flatten Binary Tree to Linked List	A A B B A Flatten Binary Tree to Linked List · 7 Companies A Amazon A Apple B Bloomberg B ByteDance F Facebook G Google M Microsoft
39	All Nodes Distance K in Binary Tree	A B B F A All Nodes Distance K in Binary Tree · 6 Companies A Amazon B Bloomberg B ByteDance F Facebook G Google M Microsoft
40	Maximum Width of Binary Tree	A A B F A Maximum Width of Binary Tree · 7 Companies A Amazon A Apple B Bloomberg F Facebook G Google LinkedIn M Microsoft