LeetCode Solutions

Explore detailed LeetCode solutions in Java, C++ / Cpp, and Python with step-by-step explanations. Each solution includes time and space complexity analysis to help you optimize your coding skills for interviews and competitive programming.

 

Explore detailed LeetCode solutions in Java, C++ / Cpp, and Python with step-by-step explanations. Each solution includes time and space complexity analysis to help you optimize your coding skills for interviews and competitive programming.

In addition to core solutions, this collection is designed to help you understand why a particular approach works, not just how to write the code. Problems are explained using clear logic, edge-case handling, and optimal data structures commonly expected in technical interviews.

The solutions cover a wide range of difficulty levels, including Easy, Medium, and Hard problems, with a strong focus on frequently asked interview questions from arrays, strings, linked lists, trees, graphs, dynamic programming, greedy algorithms, and recursion. Wherever applicable, multiple approaches are discussed to compare brute-force methods with optimized solutions.

Whether you are preparing for FAANG interviews, practicing for online coding contests, or strengthening your problem-solving fundamentals, these LeetCode solutions provide a structured and practical learning path. The content is regularly updated to align with the latest problem patterns and interview trends.

Sorted:

2747. Count Zero Request Servers LeetCode Solution 2746. Decremental String Concatenation LeetCode Solution 2745. Construct the Longest New String LeetCode Solution 2744. Find Maximum Number of String Pairs LeetCode Solution 2742. Painting the Walls LeetCode Solution 2741. Special Permutations LeetCode Solution 2740. Find the Value of the Partition LeetCode Solution 2739. Total Distance Traveled LeetCode Solution 2736. Maximum Sum Queries LeetCode Solution 2735. Collecting Chocolates LeetCode Solution 2734. Lexicographically Smallest String After Substring Operation LeetCode Solution 2733. Neither Minimum nor Maximum LeetCode Solution 2732. Find a Good Subset of the Matrix LeetCode Solution 2731. Movement of Robots LeetCode Solution 2730. Find the Longest Semi-Repetitive Substring LeetCode Solution 2729. Check if The Number is Fascinating LeetCode Solution 2727. Is Object Empty LeetCode Solution 2726. Calculator with Method Chaining LeetCode Solution 2725. Interval Cancellation LeetCode Solution 2724. Sort By LeetCode Solution 2723. Add Two Promises LeetCode Solution 2722. Join Two Arrays by ID LeetCode Solution 2721. Execute Asynchronous Functions in Parallel LeetCode Solution 2719. Count of Integers LeetCode Solution 2718. Sum of Matrix After Queries LeetCode Solution 2717. Semi-Ordered Permutation LeetCode Solution 2716. Minimize String Length LeetCode Solution 2715. Timeout Cancellation LeetCode Solution 2713. Maximum Strictly Increasing Cells in a Matrix LeetCode Solution 2712. Minimum Cost to Make All Characters Equal LeetCode Solution