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Elevo
Practice Arena

Coding Challenges

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

90
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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. 121
Best Time to Buy and Sell Stock Easy
Topics:
Arrays Dynamic Programming
Companies:
Amazon Google
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. 125
Valid Palindrome Easy
Topics:
Strings Two Pointers
Companies:
Amazon Meta
Acceptance: 0%
Solve Challenge
No. 128
Longest Consecutive Sequence Medium
Topics:
Arrays Hash Table
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 136
Single Number Easy
Topics:
Arrays Bit Manipulation
Companies:
Amazon Apple
Acceptance: 0%
Solve Challenge
No. 141
Linked List Cycle Easy
Topics:
Linked List Two Pointers
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 146
LRU Cache Medium
Topics:
Hash Table Linked List
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 148
Sort List Medium
Topics:
Linked List Sorting
Companies:
Amazon Google
Acceptance: 0%
Solve Challenge
No. 152
Maximum Product Subarray Medium
Topics:
Arrays Dynamic Programming
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 155
Min Stack Medium
Topics:
Stack
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 160
Intersection of Two Linked Lists Easy
Topics:
Linked List Two Pointers
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
No. 169
Majority Element Easy
Topics:
Arrays Hash Table Sorting
Companies:
Adobe Amazon
Acceptance: 0%
Solve Challenge
No. 191
Number of 1 Bits Easy
Topics:
Bit Manipulation
Companies:
Amazon Apple
Acceptance: 0%
Solve Challenge
No. 198
House Robber Medium
Topics:
Arrays Dynamic Programming
Companies:
Adobe Amazon
Acceptance: 0%
Solve Challenge
No. 199
Binary Tree Right Side View Medium
Topics:
Graphs Trees
Companies:
Amazon Bloomberg
Acceptance: 0%
Solve Challenge
Showing 41-60 of 90
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