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:

2799. Count Complete Subarrays in an Array LeetCode Solution 2798. Number of Employees Who Met the Target LeetCode Solution 2791. Count Paths That Can Form a Palindrome in a Tree LeetCode Solution 2790. Maximum Number of Groups With Increasing Length LeetCode Solution 2789. Largest Element in an Array after Merge Operations LeetCode Solution 2788. Split Strings by Separator LeetCode Solution 2787. Ways to Express an Integer as Sum of Powers LeetCode Solution 2786. Visit Array Positions to Maximize Score LeetCode Solution 2785. Sort Vowels in a String LeetCode Solution 2784. Check if Array is Good LeetCode Solution 2781. Length of the Longest Valid Substring LeetCode Solution 2780. Minimum Index of a Valid Split LeetCode Solution 2779. Maximum Beauty of an Array After Applying Operation LeetCode Solution 2778. Sum of Squares of Special Elements LeetCode Solution 2772. Apply Operations to Make All Array Elements Equal to Zero LeetCode Solution 2771. Longest Non-decreasing Subarray From Two Arrays LeetCode Solution 2770. Maximum Number of Jumps to Reach the Last Index LeetCode Solution 2769. Find the Maximum Achievable Number LeetCode Solution 2768. Number of Black Blocks LeetCode Solution 2767. Partition String Into Minimum Beautiful Substrings LeetCode Solution 2766. Relocate Marbles LeetCode Solution 2765. Longest Alternating Subarray LeetCode Solution 2763. Sum of Imbalance Numbers of All Subarrays LeetCode Solution 2762. Continuous Subarrays LeetCode Solution 2761. Prime Pairs With Target Sum LeetCode Solution 2760. Longest Even Odd Subarray With Threshold LeetCode Solution 2751. Robot Collisions LeetCode Solution 2750. Ways to Split Array Into Good Subarrays LeetCode Solution 2749. Minimum Operations to Make the Integer Zero LeetCode Solution 2748. Number of Beautiful Pairs LeetCode Solution