🖥️ Exercises Solutions

A repository showcasing my solutions to LeetCode and CodeForces problems. While I use multiple programming languages, Python is often my preferred choice due to its simplicity and minimal boilerplate. Occasionally, I follow the NeetCode Roadmap for structured practice and progression.

📑 Exercises & Solutions

🟡 LeetCode

Name	Difficulty	Topics
9. Palindrome Number	🟩 Easy	Math
14. Longest Common Prefix	🟩 Easy	String Trie
15. 3Sum	🟨 Medium	Array Two Pointers Sorting
48. Rotate Image	🟨 Medium	Array Math Matrix
61. Rotate List	🟨 Medium	Linked List Two Pointers
167. Two Sum II	🟨 Medium	Array Two Pointers Binary Search
197. Rising Temperature	🟩 Easy	Database
217. Contains Duplicate	🟩 Easy	Array Hash Table Sorting
242. Valid Anagram	🟩 Easy	Hash Table String Sorting
577. Employee Bonus	🟩 Easy	Database
584. Find Customer Referee	🟩 Easy	Database
595. Big Countries	🟩 Easy	Database
620. Not Boring Movies	🟩 Easy	Database
1068. Product Sales Analysis	🟩 Easy	Database
1148. Article Views I	🟩 Easy	Database
1378. Replace Employee ID	🟩 Easy	Database
1581. Customer Who Visited but Did Not Make Any Transactions	🟩 Easy	Database
1661. Average Time of Process per Machine	🟩 Easy	Database
1683. Invalid Tweets	🟩 Easy	Database
1757. Recyclable and Low Fat Products	🟩 Easy	Database

📊 CodeForces

Name	Difficulty	Topics
1A. Theatre Square	⬜ 1000	Math
4A. Watermelon	⬜ 800	Brute Force Math
25A. IQ test	🟩 1300	Brute Force
69A. Young Physicist	⬜ 1000	Implementation Math
71A. Way Too Long Words	⬜ 800	Strings
118A. String Task	⬜ 1000	Implementation Strings
282A. Bit++	⬜ 800	Implementation
466A. Cheap Travel	⬜ 1200	Implementation
451A. Game With Sticks	⬜ 900	Implementation
1491A. K-th Largest Value	⬜ 800	Implementation Brute Force Greedy
4C. Registration System	🟩 1300	Data Structures Hashing Implementation
1428C. ABBB	🟩 1300	Data Structures Hashing Implementation
1800C2. Powering The Hero	🟩 1100	Brute Force Data Structures Greddy Strings
1324D. Pair of Topics	🟩 1400	Data Structures Binary Search Two Pointers Sortings