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:

3276. Select Cells in Grid With Maximum Score LeetCode Solution 3275. K-th Nearest Obstacle Queries LeetCode Solution 3274. Check if Two Chessboard Squares Have the Same Color LeetCode Solution 3273. Minimum Amount of Damage Dealt to Bob LeetCode Solution 3272. Find the Count of Good Integers LeetCode Solution 3271. Hash Divided String LeetCode Solution 3270. Find the Key of the Numbers LeetCode Solution 3267. Count Almost Equal Pairs II LeetCode Solution 3266. Final Array State After K Multiplication Operations II LeetCode Solution 3265. Count Almost Equal Pairs I LeetCode Solution 3264. Final Array State After K Multiplication Operations I LeetCode Solution 3261. Count Substrings That Satisfy K-Constraint II LeetCode Solution 3260. Find the Largest Palindrome Divisible by K LeetCode Solution 3259. Maximum Energy Boost From Two Drinks LeetCode Solution 3258. Count Substrings That Satisfy K-Constraint I LeetCode Solution 3257. Maximum Value Sum by Placing Three Rooks II LeetCode Solution 3256. Maximum Value Sum by Placing Three Rooks I LeetCode Solution 3255. Find the Power of K-Size Subarrays II LeetCode Solution 3254. Find the Power of K-Size Subarrays I LeetCode Solution 3251. Find the Count of Monotonic Pairs II LeetCode Solution 3250. Find the Count of Monotonic Pairs I LeetCode Solution 3249. Count the Number of Good Nodes LeetCode Solution 3248. Snake in Matrix LeetCode Solution 3245. Alternating Groups III LeetCode Solution 3244. Shortest Distance After Road Addition Queries II LeetCode Solution 3243. Shortest Distance After Road Addition Queries I LeetCode Solution 3242. Design Neighbor Sum Service LeetCode Solution 3241. Time Taken to Mark All Nodes LeetCode Solution 3240. Minimum Number of Flips to Make Binary Grid Palindromic II LeetCode Solution 3239. Minimum Number of Flips to Make Binary Grid Palindromic I LeetCode Solution