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:

3117. Minimum Sum of Values by Dividing Array LeetCode Solution 3116. Kth Smallest Amount With Single Denomination Combination LeetCode Solution 3115. Maximum Prime Difference LeetCode Solution 3114. Latest Time You Can Obtain After Replacing Characters LeetCode Solution 3113. Find the Number of Subarrays Where Boundary Elements Are Maximum LeetCode Solution 3112. Minimum Time to Visit Disappearing Nodes LeetCode Solution 3111. Minimum Rectangles to Cover Points LeetCode Solution 3110. Score of a String LeetCode Solution 3108. Minimum Cost Walk in Weighted Graph LeetCode Solution 3107. Minimum Operations to Make Median of Array Equal to K LeetCode Solution 3106. Lexicographically Smallest String After Operations With Constraint LeetCode Solution 3105. Longest Strictly Increasing or Strictly Decreasing Subarray LeetCode Solution 3102. Minimize Manhattan Distances LeetCode Solution 3101. Count Alternating Subarrays LeetCode Solution 3100. Water Bottles II LeetCode Solution 3099. Harshad Number LeetCode Solution 3098. Find the Sum of Subsequence Powers LeetCode Solution 3097. Shortest Subarray With OR at Least K II LeetCode Solution 3096. Minimum Levels to Gain More Points LeetCode Solution 3095. Shortest Subarray With OR at Least K I LeetCode Solution 3093. Longest Common Suffix Queries LeetCode Solution 3092. Most Frequent IDs LeetCode Solution 3091. Apply Operations to Make Sum of Array Greater Than or Equal to k LeetCode Solution 3090. Maximum Length Substring With Two Occurrences LeetCode Solution 3086. Minimum Moves to Pick K Ones LeetCode Solution 3085. Minimum Deletions to Make String K-Special LeetCode Solution 3084. Count Substrings Starting and Ending with Given Character LeetCode Solution 3083. Existence of a Substring in a String and Its Reverse LeetCode Solution 3082. Find the Sum of the Power of All Subsequences LeetCode Solution 3081. Replace Question Marks in String to Minimize Its Value LeetCode Solution