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LeetCode 219 - Contains Duplicate II | Java Solution In this video, we solve LeetCode Problem 219: Contains Duplicate II using ...

Can you find whether a duplicate number exists within K distance in an array? In this video, we solve LeetCode 219 – Contains ...

Learn Remove Duplicates from Sorted Array (LeetCode 26) in Java with Prepflix. Understand logical length and the custom judge, ...

LeetCode 349 Solution - Intersection of Two Arrays | Java HashSet In this video, we solve LeetCode 349: Intersection of Two ...

Learn 4Sum (LeetCode 18) in Java with Prepflix. Start with a genuine quartic baseline timeout, then derive sorting, two fixed ...

Learn 3Sum (LeetCode 15) in Java with Prepflix. Understand unique value triplets versus distinct indices, inspect the genuine ...

Learn Two Sum II - Input Array Is Sorted (LeetCode 167) in Java with Prepflix. Start with a genuine brute-force timeout, derive the ...

Learn Total Hamming Distance (LeetCode 477) in Java with Prepflix. Derive XOR population count, enumerate unordered index ...

Learn Valid Triangle Number (LeetCode 611) in Java with Prepflix. Understand strict triangle inequalities and duplicate ...

Learn 3Sum Closest (LeetCode 16) in Java with Prepflix. Start with a correct accepted exhaustive baseline, then derive sorting ...

In this video, we solve LeetCode 1096 – Brace Expansion II using a simple recursive approach. At first, Brace Expansion II looks ...

Learn Next Permutation (LeetCode 31) in Java with Prepflix. Understand lexicographic order, see an exhaustive search time out, ...

Learn Nth Magical Number (LeetCode 878) in Java with Prepflix. Merge distinct multiples, inspect a real timeout, derive ...

**TODAY'S EVENING LIVE — 8:00 PM to 10:00 PM** **DSA TOPIC** → Contains Duplicate — LeetCode 217 → Array ...

Contains Duplicate (LeetCode 217) explained step by step using the HashMap approach in Java. In this video, we solve one of ...

Discord Link:https://discord.gg/VDdf8hf58 Today's Topics: Aptitude • HCF & LCM – Basics • Different methods to find HCF ...

Understand time complexity and Big O notation in Java by counting operations, analyzing loops, and using input constraints to ...