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Tree DSA Problems

Tree is an important concept in data structures and algorithms. Practice these problems to master Tree and prepare for technical interviews.

236
Total Problems
41
Easy
148
Medium
47
Hard

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ArrayBacktrackingBashBiconnected ComponentBinary Indexed TreeBinary Search
94. Binary Tree Inorder Traversal
EasyAdobe +13Binary Tree +377.473%
SolveVideo
LeetCode
95. Unique Binary Search Trees II
MediumAdobe +14Backtracking +459.1439%
SolveVideo
LeetCode
96. Unique Binary Search Trees
MediumAmazonBinary Search Tree +461.834%
SolveVideo
LeetCode
98. Validate Binary Search Tree
MediumAdobe +8Binary Search Tree +333.6651%
SolveVideo
LeetCode
99. Recover Binary Search Tree
MediumAdobe +5Binary Search Tree +354.7878%
SolveVideo
LeetCode
100. Same Tree
EasyAmazon +5Binary Tree +363.821%
SolveVideo
LeetCode
101. Symmetric Tree
EasyAdobe +7Binary Tree +358.0132%
SolveVideo
LeetCode
102. Binary Tree Level Order Traversal
MediumAmazon +8Binary Tree +269.0621%
SolveVideo
LeetCode
103. Binary Tree Zigzag Level Order Traversal
MediumAdobe +8Binary Tree +260.4286%
SolveVideo
LeetCode
104. Maximum Depth of Binary Tree
EasyAmazon +7Binary Tree +376.397%
SolveVideo
LeetCode
105. Construct Binary Tree from Preorder and Inorder Traversal
MediumAmazon +5Array +465.4749%
SolveVideo
LeetCode
106. Construct Binary Tree from Inorder and Postorder Traversal
MediumShopeeArray +464.8575%
SolveVideo
LeetCode
107. Binary Tree Level Order Traversal II
MediumAmazonBinary Tree +264.7718%
SolveVideo
LeetCode
108. Convert Sorted Array to Binary Search Tree
EasyAmazon +4Array +473.0315%
SolveVideo
LeetCode
109. Convert Sorted List to Binary Search Tree
MediumAmazon +3Binary Search Tree +463.2555%
SolveVideo
LeetCode
110. Balanced Binary Tree
EasyAdobe +4Binary Tree +253.9262%
SolveVideo
LeetCode
111. Minimum Depth of Binary Tree
EasyAcko +15Binary Tree +349.3961%
SolveVideo
LeetCode
112. Path Sum
EasyAmazon +4Binary Tree +351.845%
SolveVideo
LeetCode
113. Path Sum II
MediumAmazon +4Backtracking +359.5776%
SolveVideo
LeetCode
114. Flatten Binary Tree to Linked List
MediumAmazon +3Binary Tree +466.9452%
SolveVideo
LeetCode
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