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In this video, we solve LeetCode 507 – Perfect Number using a simple loop-based approach in Java. This problem is a classic ...

In this video, we solve LeetCode 58 – Length of Last Word using a simple and efficient string traversal approach in Java.

In this video, we solve LeetCode 2778 – Sum of Squares of Special Elements using a clean and efficient approach in Java.

In this video, we solve LeetCode 1748 – Sum of Unique Elements using a clean and efficient HashMap / frequency-count ...

In this video, we solve LeetCode 263 – Ugly Number using a simple and efficient approach in Java. This problem helps you ...

In this video, we solve LeetCode 258 – Add Digits using a simple while loop approach in Java. This problem is a great ...

In this video, we solve LeetCode 2154 – Keep Multiplying Found Values by Two using a clean and efficient approach in Java.

Problem: You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of ...

In this video, we solve LeetCode 1518 – Water Bottles using a simple and efficient approach in Java. This problem is a great ...

In this video, we solve LeetCode 202 – Happy Number using a HashSet-based approach in Java. This problem is a great ...

In this video, we solve LeetCode 2194 – Cells in a Range on an Excel Sheet using a clean and efficient approach in Java.

In this video, we solve LeetCode 3100 – Water Bottles II using a clear and optimized approach in Java. This problem builds on the ...

In this video, we solve LeetCode 3512 – Minimum Operations to Make Array Sum Divisible by K using a clean and optimal math + ...

In this video, we solve LeetCode 2032 – Two Out of Three using an efficient approach with HashSet and HashMap in Java.

In this video, we solve the famous Invert Binary Tree problem — a classic LeetCode Easy challenge and one of the most important ...

Larry solves and analyzes this Leetcode problem as both an interviewer and an interviewee. This is a live recording of a real ...

In this video, we solve the Binary Tree Inorder Traversal problem — one of the most important LeetCode Easy questions and a ...

Larry solves and analyzes this Leetcode problem as both an interviewer and an interviewee. This is a live recording of a real ...

Problem: https://codeforces.com/contest/1534/problem/D I mainly do Codeforces and AtCoder, with the occasional CodeChef ...