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:

2267. Check if There Is a Valid Parentheses String Path LeetCode Solution 2266. Count Number of Texts LeetCode Solution 2265. Count Nodes Equal to Average of Subtree LeetCode Solution 2264. Largest 3-Same-Digit Number in String LeetCode Solution 2262. Total Appeal of A String LeetCode Solution 2261. K Divisible Elements Subarrays LeetCode Solution 2260. Minimum Consecutive Cards to Pick Up LeetCode Solution 2259. Remove Digit From Number to Maximize Result LeetCode Solution 2258. Escape the Spreading Fire LeetCode Solution 2257. Count Unguarded Cells in the Grid LeetCode Solution 2256. Minimum Average Difference LeetCode Solution 2255. Count Prefixes of a Given String LeetCode Solution 2251. Number of Flowers in Full Bloom LeetCode Solution 2250. Count Number of Rectangles Containing Each Point LeetCode Solution 2249. Count Lattice Points Inside a Circle LeetCode Solution 2248. Intersection of Multiple Arrays LeetCode Solution 2246. Longest Path With Different Adjacent Characters LeetCode Solution 2245. Maximum Trailing Zeros in a Cornered Path LeetCode Solution 2244. Minimum Rounds to Complete All Tasks LeetCode Solution 2243. Calculate Digit Sum of a String LeetCode Solution 2242. Maximum Score of a Node Sequence LeetCode Solution 2241. Design an ATM Machine LeetCode Solution 2240. Number of Ways to Buy Pens and Pencils LeetCode Solution 2239. Find Closest Number to Zero LeetCode Solution 2236. Root Equals Sum of Children LeetCode Solution 2235. Add Two Integers LeetCode Solution 2234. Maximum Total Beauty of the Gardens LeetCode Solution 2233. Maximum Product After K Increments LeetCode Solution 2232. Minimize Result by Adding Parentheses to Expression LeetCode Solution 2231. Largest Number After Digit Swaps by Parity LeetCode Solution