Longest Consecutive Sequence (leetcode 128) | Array,HashTable Solutions | srkcodes
3Welcome to srkcodes, your go-to platform for Telugu coding tutorials, Leetcode solutions, and Python programming for interviews! In today’s video, we solve Leetcode Question #128: Longest Consecutive Sequence, a must-know problem for DSA interview prep and coding interviews.
🔍 What You’ll Learn:
1️ ⃣ Brute Force Approach: Checking all sequences using sorting (O(n log n) time complexity).
2️ ⃣ Optimal Hash Table Approach: Using a set-based technique to solve in O(n) time complexity.
3️ ⃣ Array-based Approach: How to leverage array traversal for efficient sequence tracking.
This problem is frequently asked in DSA interview questions and helps build an understanding of hash maps and array processing. Whether you’re preparing for coding interviews or improving your Python programming for interviews, this step-by-step Telugu coding tutorial will help you master it.
👨 💻 Why Watch This Video?
Learn Python programming for interviews with a focus on Leetcode solutions.
Understand Hash Table optimizations for solving DSA interview questions.
Enhance your coding interview preparation with a structured approach.
💡 Key Takeaways:
Learn how to optimize brute force solutions using hash tables.
Understand the importance of O(n) solutions in DSA preparation.
Master array and hash map techniques for efficient problem-solving.
💬 Have a different approach or any questions? Drop a comment below, and let’s discuss!
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🔗 External Study Resources for Deep Dive:
📝 Problem discussed in the video https://leetcode.com/problems/longest-consecutive-sequence/description/st...
📚 Topic's ⬇ ️
1)hashhttps://www.geeksforgeeks.org/hashing-data-structure/hing...
2)hashtabhttps://www.w3schools.com/dsa/dsa_theory_hashtables.php_the...
3)hashmhttps://www.geeksforgeeks.org/hash-map-in-python/h-ma...
💡 LeetCode - Hash Table Probhttps://leetcode.com/problem-list/hash-table/st/has...
💡 LeetCode - Hash Function Prhttps://leetcode.com/problem-list/hash-function/list/has...