Question 1

How many LeetCode questions does HCL ask in interviews?

Accepted Answer

HCL has 16 known LeetCode interview questions. The difficulty breakdown is 7 Easy, 8 Medium, and 1 Hard problems.

Question 2

What are the most common topics in HCL coding interviews?

Accepted Answer

The most frequently asked topics at HCL are Array (7 questions), Two Pointers (7 questions), String (7 questions), Dynamic Programming (4 questions), Hash Table (3 questions). Focus on these topics to maximize your preparation.

Question 3

How should I prepare for a HCL coding interview?

Accepted Answer

Start with the most frequently asked HCL problems on CodeJeet, sorted by frequency. Focus on Medium difficulty first since HCL asks 8 Medium problems. Practice the top topics: Array, Two Pointers, String.

Title	Difficulty	Acceptance	Frequency	Topics
Two Sum	Easy	57.1%	100.0%	ArrayHash Table
Valid Parentheses	Easy	43.7%	83.5%	StringStack
Valid Palindrome	Easy	52.8%	78.3%	Two PointersString
Longest Substring Without Repeating Characters	Medium	38.5%	78.3%	Hash TableStringSliding Window
Merge Sorted Array	Easy	54.4%	78.3%	ArrayTwo PointersSorting
Best Time to Buy and Sell Stock	Easy	56.4%	71.4%	ArrayDynamic Programming
Reverse String	Easy	80.6%	61.8%	Two PointersString
3Sum	Medium	38.6%	61.8%	ArrayTwo PointersSorting
Department Top Three Salaries	Hard	59.9%	61.8%	Database
Second Highest Salary	Medium	46.4%	61.8%	Database
Missing Number	Easy	71.7%	61.8%	ArrayHash TableMath+3
Longest Palindromic Substring	Medium	37.4%	61.8%	Two PointersStringDynamic Programming
Palindromic Substrings	Medium	72.6%	61.8%	Two PointersStringDynamic Programming
Reverse Words in a String	Medium	55.6%	61.8%	Two PointersString
Maximum Subarray	Medium	53.0%	61.8%	ArrayDivide and ConquerDynamic Programming
Minimum Size Subarray Sum	Medium	51.1%	61.8%	ArrayBinary SearchSliding Window+1

HCL

Difficulty Distribution

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