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:

2629. Function Composition LeetCode Solution 2627. Debounce LeetCode Solution 2626. Array Reduce Transformation LeetCode Solution 2625. Flatten Deeply Nested Array LeetCode Solution 2624. Snail Traversal LeetCode Solution 2623. Memoize LeetCode Solution 2622. Cache With Time Limit LeetCode Solution 2621. Sleep LeetCode Solution 2620. Counter LeetCode Solution 2619. Array Prototype Last LeetCode Solution 2618. Check if Object Instance of Class LeetCode Solution 2617. Minimum Number of Visited Cells in a Grid LeetCode Solution 2616. Minimize the Maximum Difference of Pairs LeetCode Solution 2615. Sum of Distances LeetCode Solution 2614. Prime In Diagonal LeetCode Solution 2612. Minimum Reverse Operations LeetCode Solution 2611. Mice and Cheese LeetCode Solution 2610. Convert an Array Into a 2D Array With Conditions LeetCode Solution 2609. Find the Longest Balanced Substring of a Binary String LeetCode Solution 2608. Shortest Cycle in a Graph LeetCode Solution 2607. Make K-Subarray Sums Equal LeetCode Solution 2606. Find the Substring With Maximum Cost LeetCode Solution 2605. Form Smallest Number From Two Digit Arrays LeetCode Solution 2603. Collect Coins in a Tree LeetCode Solution 2602. Minimum Operations to Make All Array Elements Equal LeetCode Solution 2601. Prime Subtraction Operation LeetCode Solution 2600. K Items With the Maximum Sum LeetCode Solution 2598. Smallest Missing Non-negative Integer After Operations LeetCode Solution 2597. The Number of Beautiful Subsets LeetCode Solution 2596. Check Knight Tour Configuration LeetCode Solution