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HashSet in Java stores unique elements and does not maintain order In this video, learn how HashSet works and when to use ...

In this video of code decode we have explained most asked java tricky interview questions which developers fails to answers ...

Se você sempre se confunde entre List, Set e Map em Java, esse vídeo vai resolver isso de uma vez por todas. Aqui eu explico ...

In this coding tutorial, we dive deep into the 'Find the Duplicate Number' problem, a popular question in technical interviews at top ...

Given an array of integers arr[] and a number k. Return the maximum sum of a subarray of size k. Note: A subarray is a contiguous ...

Learn how to solve the Happy Number problem (LeetCode 202) efficiently! In this video, we break down the logic behind ...

Given an array of integers arr[] and a number k. Return the maximum xor of a subarray of size k. Note: A subarray is a contiguous ...

🎥 Welcome to our first live class of the "Basic Java to Advanced Spring Boot Backend Development Course"! In this session ...

Learn how to efficiently find all missing numbers in an array [1, n] using the Index Marking technique! In this video, we break ...

Welcome to Lecture 29 of the DSA Series in Telugu! 💻🔥 In this video, we’ll solve one of the most interesting Sliding Window + ...

Neetcode 150 | Contains Duplicate | Complete DSA Series In this video, we solve the LeetCode problem Contains Duplicate ...

Learn how to efficiently solve the 'Subarray with Zero Sum' problem using the Prefix Sum and Hashing technique! In this video ...

From Brute Force to Optimal | 100+ LeetCode Interview Problems Explained Cracking coding interviews is NOT about ...

Learn how to solve the 'Contains Duplicate' coding interview problem efficiently using Hash Sets! In this video, we break down ...

Learn how to efficiently solve the 'Valid Sudoku' problem, a popular question in coding interviews! In this video, we break down ...

In this video, I explain how Java HashSet works internally and why it is built on top of HashMap. You will learn: • What a HashSet ...

Learn how to solve the 'Longest Word in Dictionary' problem (LeetCode 720) using two different approaches! In this video, we ...

Core Java Concepts Revision | 2 Jan – 4 Jan | Preparation** In this video, I've revised all the **important Core Java concepts** ...

In this video, DSA in Java – HashMap 02, we cover important concepts of HashMap in Java as part of the Java in One Shot series.

Master the Contains Duplicate problem on LeetCode (Problem #217). This is a fundamental array problem often asked in ...