HCL

12 LeetCode interview questions

Difficulty Distribution

Easy

5

42%

Medium

6

50%

Hard

1

8%

Top Topics

String(7)Two Pointers(7)Array(3)Hash Table(2)Sorting(2)Database(2)Dynamic Programming(2)Stack(1)Sliding Window(1)

All Questions

Title	Difficulty	Acceptance	Frequency	Topics
Two Sum	Easy	57.1%	100.0%	ArrayHash Table
Valid Parentheses	Easy	43.7%	75.0%	StringStack
Longest Substring Without Repeating Characters	Medium	38.5%	75.0%	Hash TableStringSliding Window
Merge Sorted Array	Easy	54.4%	75.0%	ArrayTwo PointersSorting
Reverse String	Easy	80.5%	75.0%	Two PointersString
Valid Palindrome	Easy	52.8%	75.0%	Two PointersString
3Sum	Medium	38.6%	62.5%	ArrayTwo PointersSorting
Second Highest Salary	Medium	46.3%	62.5%	Database
Department Top Three Salaries	Hard	59.8%	62.5%	Database
Longest Palindromic Substring	Medium	37.3%	62.5%	Two PointersStringDynamic Programming
Palindromic Substrings	Medium	72.5%	62.5%	Two PointersStringDynamic Programming
Reverse Words in a String	Medium	55.5%	62.5%	Two PointersString

Showing 12 of 12 questions