Longest Consecutive Sequence - LeetCode
Longest Consecutive Sequence - Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence. You must write an algorithm that runs in O (n) time.
Longest Consecutive Subsequence - GeeksforGeeks
Aug 20, 2025 · Given an array of integers, the task is to find the length of the longest subsequence such that elements in the subsequence are consecutive integers, the consecutive numbers can be in any …
128. Longest Consecutive Sequence - In-Depth Explanation
In-depth solution and explanation for LeetCode 128. Longest Consecutive Sequence in Python, Java, C++ and more. Intuitions, example walk through, and complexity analysis. Better than official and …
Longest Consecutive Subsequence: Codes with Visualization
Oct 3, 2025 · Learn how to solve the longest consecutive subsequence problem with O (n) time complexity using HashSets, with code examples in Python, C++, Java and visualization.
Longest Consecutive Subsequence - Techie Delight
Sep 9, 2025 · Given an integer array, find the length of the longest subsequence formed by the consecutive integers. The subsequence should contain all distinct values, and the character set …
Python - Identify the Longest Consecutive Subsequence in an Array
In this tutorial, we learned how to find the longest consecutive subsequence in an array using a hash set to achieve O (n) time complexity. The key steps included identifying the start of a sequence and …
Longest Consecutive Subsequence - Tpoint Tech - Java
Mar 17, 2025 · The HashSet method provides an effective way to find the longest consecutive subsequence in an integer array. A data structure called a hash set enables fundamental operations …