💻 LeetCode Solutions

Welcome to my LeetCode solutions repository! This repository contains my solutions to various LeetCode problems, documenting my journey through algorithmic problem-solving and competitive programming. All solutions are implemented in C++.

Current Daily Streak: 75 days 🔥

Time Travel Tickets Used: 3

What is LeetCode?

LeetCode is a platform for preparing technical coding interviews. It features a vast collection of coding challenges covering various topics including algorithms, data structures, database queries, and system design.

Repository Structure

Solutions are organized by problem number and name directly under the solutions folder:

solutions/
├── 1-two-sum/
│   └── solution.cpp
├── 2-add-two-numbers/
│   └── solution.cpp
└── ...

Solutions

Date	Problem Number	Problem	Solution
2024-11-05	2914	Minimum Number of Changes to Make Binary String Beautiful	Solution
2024-11-06	3011	Find if Array Can Be Sorted	Solution
2024-11-07	2275	Largest Combination With Bitwise AND Greater Than Zero	Solution
2024-11-08	1829	Maximum XOR for Each Query	Solution
2024-11-09	3133	Minimum Array End	Solution
2024-11-10	3097	Shortest Subarray With OR at Least K II	Solution
2024-11-11	2601	Prime Subtraction Operation	Solution
2024-11-12	2070	Most Beautiful Item for Each Query	Solution
2024-11-13	2563	Count the Number of Fair Pairs	Solution
2024-11-14	2064	Minimized Maximum of Products Distributed to Any Store	Solution
2024-11-15	1574	Shortest Subarray to be Removed to Make Array Sorted	Solution
2024-11-16	3254	Find the Power of K-Size Subarrays I	Solution
2024-11-17	862	Shortest Subarray with Sum at Least K	Solution
2024-11-18	1652	Defuse the Bomb	Solution
2024-11-19	2461	Maximum Sum of Distinct Subarrays With Length K	Solution
2024-11-20	2516	Take K of Each Character From Left and Right	Solution
2024-11-21	2257	Count Unguarded Cells in the Grid	Solution
2024-11-22	1072	Flip Columns For Maximum Number of Equal Rows	Solution
2024-11-23	1861	Rotating the Box	Solution
2024-11-24	1975	Maximum Matrix Sum	Solution
2024-11-25	773	Sliding Puzzle	Solution
2024-11-26	2924	Find Champion II	Solution
2024-11-27	3243	Shortest Distance After Road Addition Queries I	Solution
2024-11-28	2290	Minimum Obstacle Removal to Reach Corner	Solution
2024-11-29	2577	Minimum Time to Visit a Cell In a Grid	Solution
2024-11-30	2097	Valid Arrangement of Pairs	Solution
2024-12-01	1346	Check If N and Its Double Exist	Solution
2024-12-02	1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Solution
2024-12-03	2109	Adding Spaces to a String	Solution
2024-12-04	2825	Make String a Subsequence Using Cyclic Increments	Solution
2024-12-05	2337	Move Pieces to Obtain a String	Solution
2024-12-06	2554	Maximum Number of Integers to Choose From a Range I	Solution
2024-12-07	1760	Minimum Limit of Balls in a Bag	Solution
2024-12-08	2054	Two Best Non-Overlapping Events	Solution
2024-12-09	3152	Special Array II	Solution
2024-12-10	2981	Find Longest Special Substring That Occurs Thrice I	Solution
2024-12-11	2779	Maximum Beauty of an Array After Applying Operation	Solution
2024-12-12	2558	Take Gifts From the Richest Pile	Solution
2024-12-13	2593	Find Score of an Array After Marking All Elements	Solution
2024-12-14	2762	Continuous Subarrays	Solution
2024-12-15	1792	Maximum Average Pass Ratio	Solution
2024-12-16	3264	Final Array State After K Multiplication Operations I	Solution
2024-12-17	2182	Construct String With Repeat Limit	Solution
2024-12-18	1475	Final Prices With a Special Discount in a Shop	Solution
2024-12-19	769	Max Chunks To Make Sorted	Solution
2024-12-20	2415	Reverse Odd Levels of Binary Tree	Solution
2024-12-21	2872	Maximum Number of K-Divisible Components	Solution
2024-12-22	2940	Find Building Where Alice and Bob Can Meet	Solution
2024-12-23	2471	Minimum Number of Operations to Sort a Binary Tree by Level	Solution
2024-12-24	3203	Find Minimum Diameter After Merging Two Trees	Solution
2024-12-25	515	Find Largest Value in Each Tree Row	Solution
2024-12-26	494	Target Sum	Solution
2024-12-27	1014	Best Sightseeing Pair	Solution
2024-12-28	689	Maximum Sum of 3 Non-Overlapping Subarrays	Solution
2024-12-29	1639	Number of Ways to Form a Target String Given a Dictionary	Solution
2024-12-30	2466	Count Ways To Build Good Strings	Solution
2024-12-31	983	Minimum Cost For Tickets	Solution
2025-01-01	1422	Maximum Score After Splitting a String	Solution
2025-01-02	2559	Count Vowel Strings in Ranges	Solution
2025-01-03	2270	Number of Ways to Split Array	Solution
2025-01-04	1930	Unique Length-3 Palindromic Subsequences	Solution
2025-01-05	2381	Shifting Letters II	Solution
2025-01-06	1769	Minimum Number of Operations to Move All Balls to Each Box	Solution
2025-01-07	1408	String Matching in an Array	Solution
2025-01-08	3042	Count Prefix and Suffix Pairs I	Solution
2025-01-09	2185	Counting Words With a Given Prefix	Solution
2025-01-10	916	Word Subsets	Solution
2025-01-11	1400	Construct K Palindrome Strings	Solution
2025-01-12	2116	Check if a Parentheses String Can Be Valid	Solution
2025-01-13	3223	Minimum Length of String After Operations	Solution
2025-01-14	2657	Find the Prefix Common Array of Two Arrays	Solution
2025-01-15	2429	Minimize XOR	Solution
2025-01-16	2425	Bitwise XOR of All Pairings	Solution
2025-01-17	2683	Neighboring Bitwise XOR	Solution
2025-01-18	1368	Minimum Cost to Make at Least One Valid Path in a Grid	Solution

Personal Goals

• Improve problem-solving skills through consistent practice
• Master common algorithmic patterns and data structures
• Build a strong foundation for technical interviews
• Maintain a clean and well-documented collection of solutions

Acknowledgments

Thanks to the LeetCode team for providing such a valuable platform for learning and practice.

License

This project is licensed under the MIT License - see the LICENSE file for details.

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⚠️ Note: While these solutions are public for reference, I encourage you to solve the problems on your own first. The learning comes from the problem-solving process, not just from seeing the solution!