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Elevo
Practice Arena

Coding Challenges

Master your programming skills with our curated collection of technical interview problems.

15
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No. 94
Binary Tree Inorder Traversal Easy
Topics:
Recursion Stack Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 98
Validate Binary Search Tree Medium
Topics:
Binary Search Recursion Trees
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 100
Same Tree Easy
Topics:
Recursion Trees
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 101
Symmetric Tree Easy
Topics:
Recursion Trees
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 102
Binary Tree Level Order Traversal Medium
Topics:
Graphs Trees
Companies:
Amazon Meta
Acceptance: 0%
Solve Challenge
No. 104
Maximum Depth of Binary Tree Easy
Topics:
Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 105
Construct Binary Tree from Preorder and Inorder Traversal Medium
Topics:
Hash Table Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 114
Flatten Binary Tree to Linked List Medium
Topics:
Linked List Stack Trees
Companies:
Amazon Meta
Acceptance: 0%
Solve Challenge
No. 124
Binary Tree Maximum Path Sum Hard
Topics:
Dynamic Programming Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 199
Binary Tree Right Side View Medium
Topics:
Graphs Trees
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 226
Invert Binary Tree Easy
Topics:
Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 230
Kth Smallest Element in a BST Medium
Topics:
Binary Search Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 297
Serialize and Deserialize Binary Tree Hard
Topics:
Strings Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 543
Diameter of Binary Tree Easy
Topics:
Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 617
Merge Two Binary Trees Easy
Topics:
Recursion Trees
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
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