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:

3314. Construct the Minimum Bitwise Array I LeetCode Solution 3312. Sorted GCD Pair Queries LeetCode Solution 3311. Construct 2D Grid Matching Graph Layout LeetCode Solution 3310. Remove Methods From Project LeetCode Solution 3309. Maximum Possible Number by Binary Concatenation LeetCode Solution 3307. Find the K-th Character in String Game II LeetCode Solution 3306. Count of Substrings Containing Every Vowel and K Consonants II LeetCode Solution 3305. Count of Substrings Containing Every Vowel and K Consonants I LeetCode Solution 3304. Find the K-th Character in String Game I LeetCode Solution 3303. Find the Occurrence of First Almost Equal Substring LeetCode Solution 3302. Find the Lexicographically Smallest Valid Sequence LeetCode Solution 3301. Maximize the Total Height of Unique Towers LeetCode Solution 3300. Minimum Element After Replacement With Digit Sum LeetCode Solution 3298. Count Substrings That Can Be Rearranged to Contain a String II LeetCode Solution 3297. Count Substrings That Can Be Rearranged to Contain a String I LeetCode Solution 3296. Minimum Number of Seconds to Make Mountain Height Zero LeetCode Solution 3295. Report Spam Message LeetCode Solution 3292. Minimum Number of Valid Strings to Form Target II LeetCode Solution 3291. Minimum Number of Valid Strings to Form Target I LeetCode Solution 3290. Maximum Multiplication Score LeetCode Solution 3289. The Two Sneaky Numbers of Digitville LeetCode Solution 3288. Length of the Longest Increasing Path LeetCode Solution 3287. Find the Maximum Sequence Value of Array LeetCode Solution 3286. Find a Safe Walk Through a Grid LeetCode Solution 3285. Find Indices of Stable Mountains LeetCode Solution 3283. Maximum Number of Moves to Kill All Pawns LeetCode Solution 3282. Reach End of Array With Max Score LeetCode Solution 3281. Maximize Score of Numbers in Ranges LeetCode Solution 3280. Convert Date to Binary LeetCode Solution 3277. Maximum XOR Score Subarray Queries LeetCode Solution