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:

3351. Sum of Good Subsequences LeetCode Solution 3350. Adjacent Increasing Subarrays Detection II LeetCode Solution 3349. Adjacent Increasing Subarrays Detection I LeetCode Solution 3348. Smallest Divisible Digit Product II LeetCode Solution 3347. Maximum Frequency of an Element After Performing Operations II LeetCode Solution 3346. Maximum Frequency of an Element After Performing Operations I LeetCode Solution 3345. Smallest Divisible Digit Product I LeetCode Solution 3343. Count Number of Balanced Permutations LeetCode Solution 3342. Find Minimum Time to Reach Last Room II LeetCode Solution 3341. Find Minimum Time to Reach Last Room I LeetCode Solution 3340. Check Balanced String LeetCode Solution 3337. Total Characters in String After Transformations II LeetCode Solution 3336. Find the Number of Subsequences With Equal GCD LeetCode Solution 3335. Total Characters in String After Transformations I LeetCode Solution 3334. Find the Maximum Factor Score of Array LeetCode Solution 3333. Find the Original Typed String II LeetCode Solution 3332. Maximum Points Tourist Can Earn LeetCode Solution 3331. Find Subtree Sizes After Changes LeetCode Solution 3330. Find the Original Typed String I LeetCode Solution 3327. Check if DFS Strings Are Palindromes LeetCode Solution 3326. Minimum Division Operations to Make Array Non Decreasing LeetCode Solution 3325. Count Substrings With K-Frequency Characters I LeetCode Solution 3324. Find the Sequence of Strings Appeared on the Screen LeetCode Solution 3321. Find X-Sum of All K-Long Subarrays II LeetCode Solution 3320. Count The Number of Winning Sequences LeetCode Solution 3319. K-th Largest Perfect Subtree Size in Binary Tree LeetCode Solution 3318. Find X-Sum of All K-Long Subarrays I LeetCode Solution 3317. Find the Number of Possible Ways for an Event LeetCode Solution 3316. Find Maximum Removals From Source String LeetCode Solution 3315. Construct the Minimum Bitwise Array II LeetCode Solution