Question 1

Valid Parentheses — HCL Interview Question

Accepted Answer

"Valid Parentheses" is a easy difficulty problem asked at HCL interviews. It covers the following topics: String, Stack. You can practice it on LeetCode: https://leetcode.com/problems/valid-parentheses

Question 2

Longest Substring Without Repeating Characters — HCL Interview Question

Accepted Answer

"Longest Substring Without Repeating Characters" is a medium difficulty problem asked at HCL interviews. It covers the following topics: Hash Table, String, Sliding Window. You can practice it on LeetCode: https://leetcode.com/problems/longest-substring-without-repeating-characters

Question 3

Merge Sorted Array — HCL Interview Question

Accepted Answer

"Merge Sorted Array" is a easy difficulty problem asked at HCL interviews. It covers the following topics: Array, Two Pointers, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/merge-sorted-array

Question 4

Longest Common Prefix — HCL Interview Question

Accepted Answer

"Longest Common Prefix" is a easy difficulty problem asked at HCL interviews. It covers the following topics: String, Trie. You can practice it on LeetCode: https://leetcode.com/problems/longest-common-prefix

Question 5

Group Anagrams — HCL Interview Question

Accepted Answer

"Group Anagrams" is a medium difficulty problem asked at HCL interviews. It covers the following topics: Array, Hash Table, String, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/group-anagrams

Question 6

Two Sum — HCL Interview Question

Accepted Answer

"Two Sum" is a easy difficulty problem asked at HCL interviews. It covers the following topics: Array, Hash Table. You can practice it on LeetCode: https://leetcode.com/problems/two-sum

#	Question Title	Difficulty	Frequency	Topics
1	Valid Parentheses	EASY	100.0	StringStack
2	Longest Substring Without Repeating Characters	MEDIUM	94.0	Hash TableStringSliding Window
3	Merge Sorted Array	EASY	86.3	ArrayTwo PointersSorting
4	Longest Common Prefix	EASY	75.5	StringTrie
5	Group Anagrams	MEDIUM	75.5	ArrayHash TableString+1
6	Two Sum	EASY	75.5	ArrayHash Table
7	3Sum	MEDIUM	75.5	ArrayTwo PointersSorting
8	Palindrome Number	EASY	75.5	Math
9	Reverse String	EASY	75.5	Two PointersString

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