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Grokking the Coding Interview Patterns in C++

Longest Consecutive Sequence

Explore techniques to identify the longest consecutive sequence of elements in an unsorted array by applying union find data structures. Understand problem constraints, learn key concepts, and implement a solution in C++ to prepare for advanced 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 ...