Question 1

Number of Islands — HPE Interview Question

Accepted Answer

"Number of Islands" is a medium difficulty problem asked at HPE interviews. It covers the following topics: Array, Depth-First Search, Breadth-First Search, Union Find, Matrix. You can practice it on LeetCode: https://leetcode.com/problems/number-of-islands

Question 2

Longest Substring Without Repeating Characters — HPE Interview Question

Accepted Answer

"Longest Substring Without Repeating Characters" is a medium difficulty problem asked at HPE 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 Two Sorted Lists — HPE Interview Question

Accepted Answer

"Merge Two Sorted Lists" is a easy difficulty problem asked at HPE interviews. It covers the following topics: Linked List, Recursion. You can practice it on LeetCode: https://leetcode.com/problems/merge-two-sorted-lists

Question 4

Reverse Words in a String — HPE Interview Question

Accepted Answer

"Reverse Words in a String" is a medium difficulty problem asked at HPE interviews. It covers the following topics: Two Pointers, String. You can practice it on LeetCode: https://leetcode.com/problems/reverse-words-in-a-string

#	Question Title	Difficulty	Frequency	Topics
1	Number of Islands	MEDIUM	100.0	ArrayDepth-First SearchBreadth-First Search+2
2	Longest Substring Without Repeating Characters	MEDIUM	100.0	Hash TableStringSliding Window
3	Merge Two Sorted Lists	EASY	100.0	Linked ListRecursion
4	Reverse Words in a String	MEDIUM	100.0	Two PointersString

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