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Longest Repeating Character Replacement (LeetCode 424) | Single iteration | Sliding Window

17k

PT17M21S

Symmetric Tree (LeetCode 101) | Full Iterative solution with animations diagrams | BFS

Nikhil LohiaJul 15, 2024

4.5k

PT20M41S

Koko Eating Bananas (LeetCode 875) | Full solution with beautiful diagrams and visualizations

Nikhil LohiaApr 22, 2024

12k

PT18M36S

Kth Missing Positive Number (LeetCode 1539) | Full Solution with intuition, animations and visuals

Nikhil LohiaApr 15, 2024

9.8k

PT23M11S

Decode Ways (LeetCode 91) | Full Solution with visuals | Recursion to Dynamic Programming

Nikhil LohiaMar 25, 2024

17k

PT14M49S

Count Complete Tree Nodes (LeetCode 222) | Complete tree examples | Recursive & Iterative

Nikhil LohiaFeb 26, 2024

5.6k

PT15M1S

Valid Parentheses (LeetCode 20) | Full solution with visuals and animations | Stack Data Structure

Nikhil LohiaOct 30, 2023

37k

PT19M19S

Jump Game 2 (LeetCode 45) | Minimum jumps to reach end of array | Explanation with Animations

Nikhil LohiaSep 25, 2023

50k

PT21M56S

Longest Common Substring | Dynamic Programming | Intuition and explanation w/ animations

Nikhil LohiaSep 19, 2023

19k

Same Tree (LeetCode 100) | Full solution with visuals and animations | Study Algorithms

Nikhil LohiaAug 21, 2023

PT18M35S

Jump Game (LeetCode 55) | Full solution with animations and visuals | Greedy Algorithms

Nikhil LohiaAug 14, 2023

47k

PT16M

Reorganize String (LeetCode 767) | Full solution with scenario breakdown for easy explanation

Nikhil LohiaJul 17, 2023

15k

PT15M27S

Isomorphic Strings (LeetCode 205) | Full solution using a HashMap | Easy to understand

Nikhil LohiaJun 5, 2023

66k

PT21M23S

Longest Common Subsequence (LeetCode 1143) | Full Solution with a natural explanation

Nikhil LohiaMay 29, 2023

26k

PT14M45S

Maximum Product Sub-array (LeetCode 152) | Full Solution with animations and proof | Simplified

Nikhil LohiaMay 8, 2023

56k

PT13M14S

Merge Intervals (LeetCode 56) | Full Solution with diagrams and visuals | Interview Essential

Nikhil LohiaApr 10, 2023

49k

PT12M25S

Three Sum Closest (LeetCode 16) | Full Solution with visual explanation | Interview Essential

Nikhil LohiaApr 3, 2023

31k

PT14M32S

3 Sum (LeetCode 15) | Full solution with examples and visuals | Interview Essential

Nikhil LohiaMar 27, 2023

136k

PT15M11S

Zig Zag Traversal (LeetCode 103) | Full Solution with visuals and a little trick | Study Algorithms

Nikhil LohiaMar 6, 2023

15k

PT16M35S

Validate Binary Search Tree (LeetCode 98) | Full solution with animations and visuals

Nikhil LohiaFeb 27, 2023

11k

PT13M27S

Spiral Matrix (LeetCode 54) | Full Solution with Visualizations | Study Algorithms

Nikhil LohiaJan 23, 2023

38k

PT15M57S

Missing Number (LeetCode 268) | Full solution with visuals and diagrams | Study Algorithms

Nikhil LohiaJan 2, 2023

29k

PT11M50S

Minimum Depth of Binary Tree (LeetCode 111) | Full solution w/ graphical examples | Study Algorithms

Nikhil LohiaDec 25, 2022

11k

Featured Results

Coding Interview Patterns - Sliding Window | 10 different problems in a single video

Palindromic Substrings (LeetCode 647) | Full step by step solution with visuals

Longest Repeating Character Replacement (LeetCode 424) | Single iteration | Sliding Window

Symmetric Tree (LeetCode 101) | Full Iterative solution with animations diagrams | BFS

Koko Eating Bananas (LeetCode 875) | Full solution with beautiful diagrams and visualizations

Kth Missing Positive Number (LeetCode 1539) | Full Solution with intuition, animations and visuals

Decode Ways (LeetCode 91) | Full Solution with visuals | Recursion to Dynamic Programming

Count Complete Tree Nodes (LeetCode 222) | Complete tree examples | Recursive & Iterative

Valid Parentheses (LeetCode 20) | Full solution with visuals and animations | Stack Data Structure

Jump Game 2 (LeetCode 45) | Minimum jumps to reach end of array | Explanation with Animations

Longest Common Substring | Dynamic Programming | Intuition and explanation w/ animations

Same Tree (LeetCode 100) | Full solution with visuals and animations | Study Algorithms

Jump Game (LeetCode 55) | Full solution with animations and visuals | Greedy Algorithms

Reorganize String (LeetCode 767) | Full solution with scenario breakdown for easy explanation

Isomorphic Strings (LeetCode 205) | Full solution using a HashMap | Easy to understand

Longest Common Subsequence (LeetCode 1143) | Full Solution with a natural explanation

Maximum Product Sub-array (LeetCode 152) | Full Solution with animations and proof | Simplified

Merge Intervals (LeetCode 56) | Full Solution with diagrams and visuals | Interview Essential

Three Sum Closest (LeetCode 16) | Full Solution with visual explanation | Interview Essential

3 Sum (LeetCode 15) | Full solution with examples and visuals | Interview Essential

Zig Zag Traversal (LeetCode 103) | Full Solution with visuals and a little trick | Study Algorithms

Validate Binary Search Tree (LeetCode 98) | Full solution with animations and visuals

Spiral Matrix (LeetCode 54) | Full Solution with Visualizations | Study Algorithms

Missing Number (LeetCode 268) | Full solution with visuals and diagrams | Study Algorithms

Minimum Depth of Binary Tree (LeetCode 111) | Full solution w/ graphical examples | Study Algorithms

Featured Results

Coding Interview Patterns - Sliding Window | 10 different problems in a single video

Palindromic Substrings (LeetCode 647) | Full step by step solution with visuals

Longest Repeating Character Replacement (LeetCode 424) | Single iteration | Sliding Window

Symmetric Tree (LeetCode 101) | Full Iterative solution with animations diagrams | BFS

Koko Eating Bananas (LeetCode 875) | Full solution with beautiful diagrams and visualizations

Kth Missing Positive Number (LeetCode 1539) | Full Solution with intuition, animations and visuals

Decode Ways (LeetCode 91) | Full Solution with visuals | Recursion to Dynamic Programming

Count Complete Tree Nodes (LeetCode 222) | Complete tree examples | Recursive & Iterative

Valid Parentheses (LeetCode 20) | Full solution with visuals and animations | Stack Data Structure

Jump Game 2 (LeetCode 45) | Minimum jumps to reach end of array | Explanation with Animations

Longest Common Substring | Dynamic Programming | Intuition and explanation w/ animations

Same Tree (LeetCode 100) | Full solution with visuals and animations | Study Algorithms

Jump Game (LeetCode 55) | Full solution with animations and visuals | Greedy Algorithms

Reorganize String (LeetCode 767) | Full solution with scenario breakdown for easy explanation

Isomorphic Strings (LeetCode 205) | Full solution using a HashMap | Easy to understand

Longest Common Subsequence (LeetCode 1143) | Full Solution with a natural explanation

Maximum Product Sub-array (LeetCode 152) | Full Solution with animations and proof | Simplified

Merge Intervals (LeetCode 56) | Full Solution with diagrams and visuals | Interview Essential

Three Sum Closest (LeetCode 16) | Full Solution with visual explanation | Interview Essential

3 Sum (LeetCode 15) | Full solution with examples and visuals | Interview Essential

Zig Zag Traversal (LeetCode 103) | Full Solution with visuals and a little trick | Study Algorithms

Validate Binary Search Tree (LeetCode 98) | Full solution with animations and visuals

Spiral Matrix (LeetCode 54) | Full Solution with Visualizations | Study Algorithms

Missing Number (LeetCode 268) | Full solution with visuals and diagrams | Study Algorithms

Minimum Depth of Binary Tree (LeetCode 111) | Full solution w/ graphical examples | Study Algorithms

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