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:

1019. Next Greater Node In Linked List LeetCode Solution 1018. Binary Prefix Divisible By 5 LeetCode Solution 1017. Convert to Base -2 LeetCode Solution 1016. Binary String With Substrings Representing 1 To N LeetCode Solution 1015. Smallest Integer Divisible by K LeetCode Solution 1014. Best Sightseeing Pair LeetCode Solution 1013. Partition Array Into Three Parts With Equal Sum LeetCode Solution 1012. Numbers With Repeated Digits LeetCode Solution 1011. Capacity To Ship Packages Within D Days LeetCode Solution 1010. Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution 1009. Complement of Base 10 Integer LeetCode Solution 1008. Construct Binary Search Tree from Preorder Traversal LeetCode Solution 1007. Minimum Domino Rotations For Equal Row LeetCode Solution 1006. Clumsy Factorial LeetCode Solution 1005. Maximize Sum Of Array After K Negations LeetCode Solution 1004. Max Consecutive Ones III LeetCode Solution 1003. Check If Word Is Valid After Substitutions LeetCode Solution 1002. Find Common Characters LeetCode Solution 1001. Grid Illumination LeetCode Solution 1000. Minimum Cost to Merge Stones LeetCode Solution 999. Available Captures for Rook LeetCode Solution 998. Maximum Binary Tree II LeetCode Solution 997. Find the Town Judge LeetCode Solution 996. Number of Squareful Arrays LeetCode Solution 995. Minimum Number of K Consecutive Bit Flips LeetCode Solution 994. Rotting Oranges LeetCode Solution 993. Cousins in Binary Tree LeetCode Solution 992. Subarrays with K Different Integers LeetCode Solution 991. Broken Calculator LeetCode Solution 990. Satisfiability of Equality Equations LeetCode Solution