sensgithub/Leetcode

Collection of LeetCode problems I've done

LeetCode

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"For coding interview preparation, LeetCode is one of the best online resource providing a rich library of more than 300 real coding interview questions for you to practice from using one of the 7 supported languages - C, C++, Java, Python, C#, JavaScript, Ruby."

Algorithms

#	Title	Solutions	Difficulty
1	Two Sum	Python 3	Easy

#	Title	Solutions	Difficulty
3	Longest Substring Without Repeating Characters	Python 3	Medium

#	Title	Solutions	Difficulty
9	Palindrom Number	Python 3	Easy

#	Title	Solutions	Difficulty
17	Letter Combinations of a Phone Number	Python 3	Medium

#	Title	Solutions	Difficulty
535	Encode and Decode TinyURL	Python 3	Medium

#	Title	Solutions	Difficulty
2235	Add Two Integers	Python 3	Easy

Database (MySQL/Oracle)

#	Title	Solutions	Difficulty
175	Combine Two Tables	Oracle	Easy

#	Title	Solutions	Difficulty
182	Duplicate Emails	MySQL	Easy

#	Title	Solutions	Difficulty
184	Department Highest Salary	MySQL	Medium

#	Title	Solutions	Difficulty
196	Delete Duplicate Emails	MySQL	Easy

#	Title	Solutions	Difficulty
197	Rising Temperature	MySQL	Easy

#	Title	Solutions	Difficulty
511	Game Play Analysis I	MySQL	Easy

#	Title	Solutions	Difficulty
586	Customer Placing the Largest Number of Orders	MySQL	Easy

#	Title	Solutions	Difficulty
595	Big Countries	Oracle	Easy

#	Title	Solutions	Difficulty
607	Sales Person	Oracle	Easy

#	Title	Solutions	Difficulty
1050	Actors and Directors Who Cooperated At Least Three Times	[MySQL]	Easy

#	Title	Solutions	Difficulty
1141	User Activity for the Past 30 Days I	MySQL	Easy

#	Title	Solutions	Difficulty
1148	Article Views I	MySQL	Easy

#	Title	Solutions	Difficulty
1393	Capital Gain/Loss	MySQL	Medium

#	Title	Solutions	Difficulty
1407	Top Travellers	MySQL	Easy

#	Title	Solutions	Difficulty
1581	Customer Who Visited but Did Not Make Any Transactions	MySQL	Easy

#	Title	Solutions	Difficulty
1667	Fix Names in a Table	Oracle	Easy

#	Title	Solutions	Difficulty
1741	Find Total Time Spent by Each Employee	MySQL	Easy

#	Title	Solutions	Difficulty
1757	Recyclable and Low Fat Products	Oracle	Easy

#	Title	Solutions	Difficulty
1890	The Latest Login in 2020	MySQL	Easy