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:

3563. Lexicographically Smallest String After Adjacent Removals LeetCode Solution 3562. Maximum Profit from Trading Stocks with Discounts LeetCode Solution 3561. Resulting String After Adjacent Removals LeetCode Solution 3560. Find Minimum Log Transportation Cost LeetCode Solution 3559. Number of Ways to Assign Edge Weights II LeetCode Solution 3558. Number of Ways to Assign Edge Weights I LeetCode Solution 3557. Find Maximum Number of Non Intersecting Substrings LeetCode Solution 3556. Sum of Largest Prime Substrings LeetCode Solution 3554. Find Category Recommendation Pairs LeetCode Solution 3551. Minimum Swaps to Sort by Digit Sum LeetCode Solution 3550. Smallest Index With Digit Sum Equal to Index LeetCode Solution 3553. Minimum Weighted Subgraph With the Required Paths II LeetCode Solution 3552. Grid Teleportation Traversal LeetCode Solution 3548. Equal Sum Grid Partition II LeetCode Solution 3547. Maximum Sum of Edge Values in a Graph LeetCode Solution 3546. Equal Sum Grid Partition I LeetCode Solution 3545. Minimum Deletions for At Most K Distinct Characters LeetCode Solution 3544. Subtree Inversion Sum LeetCode Solution 3543. Maximum Weighted K-Edge Path LeetCode Solution 3542. Minimum Operations to Convert All Elements to Zero LeetCode Solution 3541. Find Most Frequent Vowel and Consonant LeetCode Solution 3539. Find Sum of Array Product of Magical Sequences LeetCode Solution 3538. Merge Operations for Minimum Travel Time LeetCode Solution 3537. Fill a Special Grid LeetCode Solution 3536. Maximum Product of Two Digits LeetCode Solution 3534. Path Existence Queries in a Graph II LeetCode Solution 3533. Concatenated Divisibility LeetCode Solution 3532. Path Existence Queries in a Graph I LeetCode Solution 3531. Count Covered Buildings LeetCode Solution 3530. Maximum Profit from Valid Topological Order in DAG LeetCode Solution