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:

1806. Minimum Number of Operations to Reinitialize a Permutation LeetCode Solution 1805. Number of Different Integers in a String LeetCode Solution 1803. Count Pairs With XOR in a Range LeetCode Solution 1802. Maximum Value at a Given Index in a Bounded Array LeetCode Solution 1801. Number of Orders in the Backlog LeetCode Solution 1800. Maximum Ascending Subarray Sum LeetCode Solution 1799. Maximize Score After N Operations LeetCode Solution 1798. Maximum Number of Consecutive Values You Can Make LeetCode Solution 1797. Design Authentication Manager LeetCode Solution 1796. Second Largest Digit in a String LeetCode Solution 1795. Rearrange Products Table LeetCode Solution 1793. Maximum Score of a Good Subarray LeetCode Solution 1792. Maximum Average Pass Ratio LeetCode Solution 1791. Find Center of Star Graph LeetCode Solution 1790. Check if One String Swap Can Make Strings Equal LeetCode Solution 1789. Primary Department for Each Employee LeetCode Solution 1787. Make the XOR of All Segments Equal to Zero LeetCode Solution 1786. Number of Restricted Paths From First to Last Node LeetCode Solution 1785. Minimum Elements to Add to Form a Given Sum LeetCode Solution 1784. Check if Binary String Has at Most One Segment of Ones LeetCode Solution 1782. Count Pairs Of Nodes LeetCode Solution 1781. Sum of Beauty of All Substrings LeetCode Solution 1780. Check if Number is a Sum of Powers of Three LeetCode Solution 1779. Find Nearest Point That Has the Same X or Y Coordinate LeetCode Solution 1776. Car Fleet II LeetCode Solution 1775. Equal Sum Arrays With Minimum Number of Operations LeetCode Solution 1774. Closest Dessert Cost LeetCode Solution 1773. Count Items Matching a Rule LeetCode Solution 1771. Maximize Palindrome Length From Subsequences LeetCode Solution 1770. Maximum Score from Performing Multiplication Operations LeetCode Solution