Persistent Systems

12 LeetCode interview questions

Difficulty Distribution

Easy

7

58%

Medium

5

42%

Hard

0

0%

Top Topics

String(6)Array(6)Hash Table(4)Sorting(4)Two Pointers(3)Dynamic Programming(2)Math(1)Bit Manipulation(1)Stack(1)Divide and Conquer(1)

All Questions

Title	Difficulty	Acceptance	Frequency	Topics
Minimum Bit Flips to Convert Number	Easy	87.8%	100.0%	Bit Manipulation
Group Anagrams	Medium	72.2%	87.5%	ArrayHash TableString+1
Palindrome Number	Easy	60.2%	75.0%	Math
Valid Parentheses	Easy	43.7%	75.0%	StringStack
Two Sum	Easy	57.1%	75.0%	ArrayHash Table
Longest Common Prefix	Easy	47.1%	75.0%	ArrayStringTrie
Valid Anagram	Easy	67.8%	62.5%	Hash TableStringSorting
Maximum Subarray	Medium	53.0%	62.5%	ArrayDivide and ConquerDynamic Programming
Longest Substring Without Repeating Characters	Medium	38.5%	62.5%	Hash TableStringSliding Window
Longest Palindromic Substring	Medium	37.3%	62.5%	Two PointersStringDynamic Programming
Merge Sorted Array	Easy	54.4%	62.5%	ArrayTwo PointersSorting
3Sum	Medium	38.6%	62.5%	ArrayTwo PointersSorting

Showing 12 of 12 questions