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:

1251. Average Selling Price LeetCode Solution 1250. Check If It Is a Good Array LeetCode Solution 1249. Minimum Remove to Make Valid Parentheses LeetCode Solution 1248. Count Number of Nice Subarrays LeetCode Solution 1247. Minimum Swaps to Make Strings Equal LeetCode Solution 1240. Tiling a Rectangle with the Fewest Squares LeetCode Solution 1239. Maximum Length of a Concatenated String with Unique Characters LeetCode Solution 1238. Circular Permutation in Binary Representation LeetCode Solution 1237. Find Positive Integer Solution for a Given Equation LeetCode Solution 1235. Maximum Profit in Job Scheduling LeetCode Solution 1234. Replace the Substring for Balanced String LeetCode Solution 1233. Remove Sub-Folders from the Filesystem LeetCode Solution 1232. Check If It Is a Straight Line LeetCode Solution 1227. Airplane Seat Assignment Probability LeetCode Solution 1226. The Dining Philosophers LeetCode Solution 1224. Maximum Equal Frequency LeetCode Solution 1223. Dice Roll Simulation LeetCode Solution 1222. Queens That Can Attack the King LeetCode Solution 1221. Split a String in Balanced Strings LeetCode Solution 1220. Count Vowels Permutation LeetCode Solution 1219. Path with Maximum Gold LeetCode Solution 1218. Longest Arithmetic Subsequence of Given Difference LeetCode Solution 1217. Minimum Cost to Move Chips to The Same Position LeetCode Solution 1211. Queries Quality and Percentage LeetCode Solution 1210. Minimum Moves to Reach Target with Rotations LeetCode Solution 1209. Remove All Adjacent Duplicates in String II LeetCode Solution 1208. Get Equal Substrings Within Budget LeetCode Solution 1207. Unique Number of Occurrences LeetCode Solution 1206. Design Skiplist LeetCode Solution 1204. Last Person to Fit in the Bus LeetCode Solution