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Arrays and HashMaps are some of the most important topics in coding interviews — and once you understand them, many ...

TwoSumProblem #DSA #CodingInterview Leetcode #2 | Two Sum Problem Explained in Java | Brute Force vs O(n) Hash Map ...

Lecture Resources ...

Mastering Python Hashing with hashlib.

Two Sum is one of the most asked DSA interview questions in product-based companies. In this video, you will learn: ✓ Two Sum ...

DSA Roadmap 2026 Zero to Placement | Complete Step-by-Step Guide If you are an MCA, BCA, or Engineering student and ...

Welcome to Code with Bharadwaj Code with Bharadwaj is a high-impact programming channel built for those who want to master ...

Understanding why String is immutable in Java is one of the most frequently asked Java interview questions — and one that many ...

Whatsapp Community Link : https://www.whatsapp.com/channel/0029Va6kVSjICVfiVdsHgi1A Hi Everyone, this is the 26th video of ...

Learn how to Design a HashSet from scratch! In this video, we explore the internal implementation of the HashSet data ...

In this video, we solve LeetCode 3805: Count Caesar Cipher Pairs — a smart string normalization problem based on Caesar ...

In this video, we design a scalable Tiny URL (URL Shortener) system similar to Bit.ly or TinyURL — a classic system design ...

Learn how to design a HashMap (Hash Table) from scratch! In this video, we break down one of the most common coding ...

Problem Link: https://leetcode.com/problems/unique-number-of-occurrences/ My Solution: ...

In this video, we solve the "Contains Duplicate" problem from LeetCode as part of the ThinkDSA Series, where the focus is not just ...

Welcome to *Day 11* of the *75 Hard DSA* Challenge In this video, I solve and explain LeetCode 76 – *Minimum Window ...

JOIN TELEGRAM CHANNEL FOR LATEST UPDATES: https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya ...

In this video, we learn how to find the maximum element in every sliding window of size k — a classic and very important interview ...

I'm going LIVE on YouTube at 8:00 PM to explain and solve the Rotten Oranges problem — one of the most important BFS + grid ...

Programming courses: https://clck.ru/3QVRea Interview practice: https://clck.ru/3QVRgd This video describes an in-depth ...