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Hey! Today is Day 1 of my 50-day challenge where I try to solve 50 LeetCode EASY problems… even though I literally just started ...

Think merging two sorted lists is "easy"? Join the 900+ developers who disagree! This LeetCode classic trips up more people than ...

Hi everyone! Welcome back to my channel :) It’s 2025, AI tools are insanely advanced… so do we still need to grind LeetCode ...

Learn Duplicate Zeros (LeetCode 1089) in the clearest and easiest way possible. In this video, I walk you through the full logic ...

In this video, we tackle the classic Merge Two Sorted Arrays problem from LeetCode and explore multiple solutions step by step, ...

Master the famous stock trading problem with at most K transactions! This LeetCode hard problem combines dynamic ...

Are you confused about SQL JOINs? This video will improve your SQL knowledge by explaining one of the most asked SQL ...

Welcome to TechTrouble Solved! In this video, we break down Move Zeroes (LeetCode 283) using one of the most important ...

Really procasting stuff lately so I couldn't post. I recorded this on 20 days ago 16th November 2025. Yeah today is 5th december I ...

Easiest Way to solve LeetCode 968 – Binary Tree Cameras using a greedy postorder Depth First Search approach. This is a ...

Minimum Window Substring – One of the Hardest Sliding Window Problems Fully Explained In this video, we solve the classic and ...

Minimum Size Subarray Sum – Intuition + Sliding Window + Full Code In this video, we solve the famous sliding window problem ...

Check out Simplilearn's Professional Certificate Program in Data Analytics, Generative AI And Adaptive Systems here: ...

Start your Web Development Journey: https://codecompile.ai/courses Use code NEWYEAR — Flat 20% OFF In this video, we ...

Longest Palindromic Substring – Full Explanation (Beginner to Advanced) In this video, we will solve the classic Longest ...

Solving 3SUM isn't just about finding three numbers that add up to zero — it's about understanding a core interview pattern used ...

Struggling with linked lists? You're not alone! If the ListNode class feels like a mystery, this is THE foundational video that will ...

所謂的數論問題，也不一定是是像費馬定理那樣的大問題，能找出數字間的pattern也都是值得玩味的執行直到r=(10*r+1)%k==0（ ...

Welcome to Day 1 of my DSA Daily Series! In this video, we break down the classic Two Sum problem step by step using: ...

py3 C C++階乘模運算速解Leetcode 3577 Count the Number of Computer Unlocking Permutations [codes on Leetcode]https://leetcode ...