How can we find the longest consecutive elements sequence?

To find the longest consecutive elements sequence, we can utilize a combination of data structures and algorithms. One possible approach is to use a hash set to store all the elements in the given array. Then, we can iterate through the array and for each element, check if it is the start of a sequence by looking for the previous element in the hash set. If it is not found, we know this is the start of a new sequence. From here, we can keep incrementing a counter until we no longer find the next consecutive element in the hash set. In each iteration, we update a variable to store the length of the longest sequence encountered so far. Once we finish iterating through the array, this variable will hold the length of the longest consecutive elements sequence.

This mind map was published on 30 January 2024 and has been viewed 55 times.