Hash Set

Longest Consecutive Sequence

December 25, 2023
medium
Hash Set, Linear Scan"

Problem # Given an unsorted array of integers, find the length of the longest consecutive elements sequence. Solution # To solve the problem of finding the length of the longest consecutive elements sequence in an unsorted array of integers, we can use a hash set for efficient lookups. The algorithm involves iterating through the array and dynamically checking for consecutive sequences. Here’s how we can implement it in Python: ...