Longest Consecutive Sequence - LeetCode #128 - Python, JavaScript, Java, C++

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Longest Consecutive Sequence with Python, JavaScript, Java and C++, LeetCode #128!

In this video, we tackle the "Longest Consecutive Sequence" problem, a popular coding challenge. You'll learn how to efficiently find the longest consecutive sequence in an array of integers using a set for O(1) lookups. We'll walk through the algorithm step-by-step, explaining how to identify the start of a sequence and count its length. By the end of this tutorial, you'll understand how to implement the solution in various programming languages. Whether you're preparing for coding interviews or improving your problem-solving skills, this video on the "Longest Consecutive Sequence" is perfect for you. Don't forget to like, comment, and subscribe for more coding tutorials!

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■ Timeline
0:05 Explain a basic idea
4:24 Coding
5:39 Time Complexity and Space Complexity

■ Blind 75 LeetCode questions

■ Twitter

■ Instagram

■ Problem Link

■ Codes in the video
- Python, JavaScript, Java and C++ are available from here.

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Автор

Isn't checking if n number in num_set O(n) instead of O(1)?

terryzhang