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:

2151. Maximum Good People Based on Statements LeetCode Solution 2150. Find All Lonely Numbers in the Array LeetCode Solution 2149. Rearrange Array Elements by Sign LeetCode Solution 2148. Count Elements With Strictly Smaller and Greater Elements LeetCode Solution 2147. Number of Ways to Divide a Long Corridor LeetCode Solution 2146. K Highest Ranked Items Within a Price Range LeetCode Solution 2145. Count the Hidden Sequences LeetCode Solution 2144. Minimum Cost of Buying Candies With Discount LeetCode Solution 2141. Maximum Running Time of N Computers LeetCode Solution 2140. Solving Questions With Brainpower LeetCode Solution 2139. Minimum Moves to Reach Target Score LeetCode Solution 2138. Divide a String Into Groups of Size k LeetCode Solution 2136. Earliest Possible Day of Full Bloom LeetCode Solution 2135. Count Words Obtained After Adding a Letter LeetCode Solution 2134. Minimum Swaps to Group All 1’s Together II LeetCode Solution 2133. Check if Every Row and Column Contains All Numbers LeetCode Solution 2132. Stamping the Grid LeetCode Solution 2131. Longest Palindrome by Concatenating Two Letter Words LeetCode Solution 2129. Capitalize the Title LeetCode Solution 2127. Maximum Employees to Be Invited to a Meeting LeetCode Solution 2126. Destroying Asteroids LeetCode Solution 2125. Number of Laser Beams in a Bank LeetCode Solution 2124. Check if All A’s Appears Before All B’s LeetCode Solution 2122. Recover the Original Array LeetCode Solution 2121. Intervals Between Identical Elements LeetCode Solution 2120. Execution of All Suffix Instructions Staying in a Grid LeetCode Solution 2119. A Number After a Double Reversal LeetCode Solution 2117. Abbreviating the Product of a Range LeetCode Solution 2116. Check if a Parentheses String Can Be Valid LeetCode Solution 2115. Find All Possible Recipes from Given Supplies LeetCode Solution