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:

1847. Closest Room LeetCode Solution 1846. Maximum Element After Decreasing and Rearranging LeetCode Solution 1845. Seat Reservation Manager LeetCode Solution 1844. Replace All Digits with Characters LeetCode Solution 1840. Maximum Building Height LeetCode Solution 1839. Longest Substring Of All Vowels in Order LeetCode Solution 1838. Frequency of the Most Frequent Element LeetCode Solution 1837. Sum of Digits in Base K LeetCode Solution 1835. Find XOR Sum of All Pairs Bitwise AND LeetCode Solution 1834. Single-Threaded CPU LeetCode Solution 1833. Maximum Ice Cream Bars LeetCode Solution 1832. Check if the Sentence Is Pangram LeetCode Solution 1830. Minimum Number of Operations to Make String Sorted LeetCode Solution 1829. Maximum XOR for Each Query LeetCode Solution 1828. Queries on Number of Points Inside a Circle LeetCode Solution 1827. Minimum Operations to Make the Array Increasing LeetCode Solution 1825. Finding MK Average LeetCode Solution 1824. Minimum Sideway Jumps LeetCode Solution 1823. Find the Winner of the Circular Game LeetCode Solution 1822. Sign of the Product of an Array LeetCode Solution 1819. Number of Different Subsequences GCDs LeetCode Solution 1818. Minimum Absolute Sum Difference LeetCode Solution 1817. Finding the Users Active Minutes LeetCode Solution 1816. Truncate Sentence LeetCode Solution 1815. Maximum Number of Groups Getting Fresh Donuts LeetCode Solution 1814. Count Nice Pairs in an Array LeetCode Solution 1813. Sentence Similarity III LeetCode Solution 1812. Determine Color of a Chessboard Square LeetCode Solution 1808. Maximize Number of Nice Divisors LeetCode Solution 1807. Evaluate the Bracket Pairs of a String LeetCode Solution