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:

1295. Find Numbers with Even Number of Digits LeetCode Solution 1293. Shortest Path in a Grid with Obstacles Elimination LeetCode Solution 1292. Maximum Side Length of a Square with Sum Less than or Equal to Threshold LeetCode Solution 1291. Sequential Digits LeetCode Solution 1290. Convert Binary Number in a Linked List to Integer LeetCode Solution 1289. Minimum Falling Path Sum II LeetCode Solution 1288. Remove Covered Intervals LeetCode Solution 1287. Element Appearing More Than 25% In Sorted Array LeetCode Solution 1286. Iterator for Combination LeetCode Solution 1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix LeetCode Solution 1283. Find the Smallest Divisor Given a Threshold LeetCode Solution 1282. Group the People Given the Group Size They Belong To LeetCode Solution 1281. Subtract the Product and Sum of Digits of an Integer LeetCode Solution 1280. Students and Examinations LeetCode Solution 1278. Palindrome Partitioning III LeetCode Solution 1277. Count Square Submatrices with All Ones LeetCode Solution 1276. Number of Burgers with No Waste of Ingredients LeetCode Solution 1275. Find Winner on a Tic Tac Toe Game LeetCode Solution 1269. Number of Ways to Stay in the Same Place After Some Steps LeetCode Solution 1268. Search Suggestions System LeetCode Solution 1267. Count Servers that Communicate LeetCode Solution 1266. Minimum Time Visiting All Points LeetCode Solution 1263. Minimum Moves to Move a Box to Their Target Location LeetCode Solution 1262. Greatest Sum Divisible by Three LeetCode Solution 1261. Find Elements in a Contaminated Binary Tree LeetCode Solution 1260. Shift 2D Grid LeetCode Solution 1255. Maximum Score Words Formed by Letters LeetCode Solution 1254. Number of Closed Islands LeetCode Solution 1253. Reconstruct a 2-Row Binary Matrix LeetCode Solution 1252. Cells with Odd Values in a Matrix LeetCode Solution