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Master your programming skills with our curated collection of technical interview problems.
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No.
1
Two Sum
Easy
Topics:
Arrays
Hash Table
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
3
Longest Substring Without Repeating Characters
Medium
Topics:
Hash Table
Sliding Window
Strings
Companies:
Amazon
Bloomberg
Acceptance:
0%
Solve Challenge
No.
13
Roman to Integer
Easy
Topics:
Hash Table
Math
Strings
Companies:
Adobe
Amazon
Acceptance:
0%
Solve Challenge
No.
49
Group Anagrams
Medium
Topics:
Arrays
Hash Table
Sorting
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
73
Set Matrix Zeroes
Medium
Topics:
Arrays
Hash Table
Matrix
Companies:
Amazon
Meta
Acceptance:
0%
Solve Challenge
No.
76
Minimum Window Substring
Hard
Topics:
Hash Table
Sliding Window
Strings
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.
128
Longest Consecutive Sequence
Medium
Topics:
Arrays
Hash Table
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
146
LRU Cache
Medium
Topics:
Hash Table
Linked List
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
169
Majority Element
Easy
Topics:
Arrays
Hash Table
Sorting
Companies:
Adobe
Amazon
Acceptance:
0%
Solve Challenge
No.
208
Implement Trie (Prefix Tree)
Medium
Topics:
Hash Table
Strings
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
217
Contains Duplicate
Easy
Topics:
Arrays
Hash Table
Sorting
Companies:
Adobe
Amazon
Acceptance:
0%
Solve Challenge
No.
242
Valid Anagram
Easy
Topics:
Hash Table
Sorting
Strings
Companies:
Amazon
Bloomberg
Acceptance:
0%
Solve Challenge
No.
347
Top K Frequent Elements
Medium
Topics:
Arrays
Hash Table
Heap
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
438
Find All Anagrams in a String
Medium
Topics:
Hash Table
Sliding Window
Strings
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
No.
560
Subarray Sum Equals K
Medium
Topics:
Arrays
Hash Table
Companies:
Amazon
Google
Acceptance:
0%
Solve Challenge
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