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:

1361. Validate Binary Tree Nodes LeetCode Solution 1360. Number of Days Between Two Dates LeetCode Solution 1359. Count All Valid Pickup and Delivery Options LeetCode Solution 1358. Number of Substrings Containing All Three Characters LeetCode Solution 1357. Apply Discount Every n Orders LeetCode Solution 1356. Sort Integers by The Number of 1 Bits LeetCode Solution 1354. Construct Target Array With Multiple Sums LeetCode Solution 1353. Maximum Number of Events That Can Be Attended LeetCode Solution 1352. Product of the Last K Numbers LeetCode Solution 1351. Count Negative Numbers in a Sorted Matrix LeetCode Solution 1349. Maximum Students Taking Exam LeetCode Solution 1348. Tweet Counts Per Frequency LeetCode Solution 1347. Minimum Number of Steps to Make Two Strings Anagram LeetCode Solution 1346. Check If N and Its Double Exist LeetCode Solution 1345. Jump Game IV LeetCode Solution 1344. Angle Between Hands of a Clock LeetCode Solution 1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold LeetCode Solution 1342. Number of Steps to Reduce a Number to Zero LeetCode Solution 1341. Movie Rating LeetCode Solution 1340. Jump Game V LeetCode Solution 1339. Maximum Product of Splitted Binary Tree LeetCode Solution 1338. Reduce Array Size to The Half LeetCode Solution 1337. The K Weakest Rows in a Matrix LeetCode Solution 1335. Minimum Difficulty of a Job Schedule LeetCode Solution 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance LeetCode Solution 1333. Filter Restaurants by Vegan-Friendly, Price and Distance LeetCode Solution 1332. Remove Palindromic Subsequences LeetCode Solution 1331. Rank Transform of an Array LeetCode Solution 1330. Reverse Subarray To Maximize Array Value LeetCode Solution 1329. Sort the Matrix Diagonally LeetCode Solution