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:

3427. Sum of Variable Length Subarrays LeetCode Solution 3426. Manhattan Distances of All Arrangements of Pieces LeetCode Solution 3425. Longest Special Path LeetCode Solution 3424. Minimum Cost to Make Arrays Identical LeetCode Solution 3423. Maximum Difference Between Adjacent Elements in a Circular Array LeetCode Solution 3421. Find Students Who Improved LeetCode Solution 3420. Count Non-Decreasing Subarrays After K Operations LeetCode Solution 3419. Minimize the Maximum Edge Weight of Graph LeetCode Solution 3418. Maximum Amount of Money Robot Can Earn LeetCode Solution 3417. Zigzag Grid Traversal With Skip LeetCode Solution 3414. Maximum Score of Non-overlapping Intervals LeetCode Solution 3413. Maximum Coins From K Consecutive Bags LeetCode Solution 3412. Find Mirror Score of a String LeetCode Solution 3411. Maximum Subarray With Equal Products LeetCode Solution 3410. Maximize Subarray Sum After Removing All Occurrences of One Element LeetCode Solution 3409. Longest Subsequence With Decreasing Adjacent Difference LeetCode Solution 3408. Design Task Manager LeetCode Solution 3407. Substring Matching Pattern LeetCode Solution 3405. Count the Number of Arrays with K Matching Adjacent Elements LeetCode Solution 3404. Count Special Subsequences LeetCode Solution 3403. Find the Lexicographically Largest String From the Box I LeetCode Solution 3402. Minimum Operations to Make Columns Strictly Increasing LeetCode Solution 3399. Smallest Substring With Identical Characters II LeetCode Solution 3398. Smallest Substring With Identical Characters I LeetCode Solution 3397. Maximum Number of Distinct Elements After Operations LeetCode Solution 3396. Minimum Number of Operations to Make Elements in Array Distinct LeetCode Solution 3395. Subsequences with a Unique Middle Mode I LeetCode Solution 3394. Check if Grid can be Cut into Sections LeetCode Solution 3393. Count Paths With the Given XOR Value LeetCode Solution 3392. Count Subarrays of Length Three With a Condition LeetCode Solution