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← Back to Persistent Systems
Array
10 questions
All (10)
Easy (6)
Medium (4)
Hard (0)
1
Longest Common Prefix
Easy
Array
String
Trie
Solve →
2
Group Anagrams
Medium
Array
Hash Table
String
Solve →
3
Two Sum
Easy
Array
Hash Table
Solve →
4
Maximum Subarray
Medium
Array
Divide and Conquer
Dynamic Programming
Solve →
5
Merge Sorted Array
Easy
Array
Two Pointers
Sorting
Solve →
6
Longest Common Prefix
Easy
Array
String
Trie
Solve →
7
Group Anagrams
Medium
Array
Hash Table
String
Solve →
8
Two Sum
Easy
Array
Hash Table
Solve →
9
Maximum Subarray
Medium
Array
Divide and Conquer
Dynamic Programming
Solve →
10
Merge Sorted Array
Easy
Array
Two Pointers
Sorting
Solve →