HCL Interview Questions — CS-Next ByCompany

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No.	Problem	Difficulty	Frequency
1	Two Sum Sliding Window	Easy	100.0%
20	Valid Parentheses Stack/Queue	Easy	87.5%
3	Longest Substring Without Repeating Characters StringTree	Medium	75.0%
88	Merge Sorted Array Array	Easy	75.0%
125	Valid Palindrome String	Easy	75.0%
121	Best Time to Buy and Sell Stock	Easy	75.0%
344	Reverse String String	Easy	62.5%
176	Second Highest Salary	Medium	62.5%
185	Department Top Three Salaries	Hard	62.5%
5	Longest Palindromic Substring StringTree	Medium	62.5%
647	Palindromic Substrings StringTree	Medium	62.5%
151	Reverse Words in a String String	Medium	62.5%
53	Maximum Subarray Array	Medium	62.5%
268	Missing Number Math	Easy	62.5%
209	Minimum Size Subarray Sum Array	Medium	62.5%
367	Valid Perfect Square	Easy	62.5%