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Grokking the Coding Interview Patterns in Go

Solution: Longest Consecutive Sequence

Explore how to determine the length of the longest consecutive sequence in an unsorted integer array by applying the Union Find pattern. Learn to group consecutive elements as connected components efficiently, updating component sizes and tracking the maximum length. Understand the implementation details, time complexity of O(n), and space complexity considerations for this algorithmic solution.

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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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