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Grokking the Coding Interview Patterns in C#

Solution: Longest Consecutive Sequence

Explore how to use the Union Find data structure to solve the longest consecutive sequence problem in an unsorted array. Learn to merge consecutive elements into connected components and efficiently determine the length of the longest sequence with a time complexity of O(n). Understand the implementation of this pattern and its benefits for coding interviews.

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Statement

Given an unsorted array, nums, your task is to return the length of the longest consecutive sequence of elements. The consecutive sequence of elements is such that there are no missing elements in the sequence. The consecutive elements can be present anywhere in the input array.

Note: Two elements, xx and yy, are called consecutive if the difference between them is equal to 11.

Constraints:

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