LeetCode Solutions

#	Title	Difficulty	Time	Space	Solution	Approach
1	Two Sum	Easy	O(n)	O(n)	C++,Go,Java,Python	Hashing
2	Add Two Numbers	Medium	O(max(m, n))	O(max(m, n))	C++,Go,Java,Python	Linked List
3	Longest Substring Without Repeating Characters	Medium	O(n)	O(n)	Go,Python	Sliding Window
11	Container With Most Water	Medium	O(n)	O(1)	Python	Two Pointer
48	Rotate Image	Medium	O(n^2)	O(1)	C++,Java,Python	Math
70	Climbing Stairs	TBD	TBD	TBD	Python	TBD
74	Search a 2D Matrix	Medium	O(log m + log n)	O(1)	C++,Java,Python	Binary Search
125	Valid Palindrome	Easy	O(n)	O(1)	C++,Java,Python	Two Pointer
167	Two Sum II Input Array is Sorted	Medium	O(n)	O(1)	C++,Java,Python	Two Pointer
175	Combine Two Tables	Easy	N/A	N/A	SQL	Database
181	Employees Earning More Than Their Managers	Easy	N/A	N/A	SQL	Database
182	Duplicate Emails	Easy	N/A	N/A	SQL	Database
183	Customers Who Never Order	Easy	N/A	N/A	SQL	Database
196	Delete Duplicate Emails	Easy	N/A	N/A	SQL	Database
217	Contains Duplicates	Easy	O(n)	O(n)	C++,Java,Python	Hashing
511	Game Play Analysis I	Easy	N/A	N/A	SQL	Database
577	Employee Bonus	Easy	N/A	N/A	SQL	Database
584	Find Customer Referee	Easy	N/A	N/A	SQL	Database
586	Customer Placing the Largest Number of Orders	Easy	N/A	N/A	SQL	Database
595	Big Countries	Easy	N/A	N/A	SQL	Database
596	Classes More Than 5 Students	Easy	N/A	N/A	SQL	Database
620	Not Boring Movies	Easy	N/A	N/A	SQL	Database
627	Swap Salary	Easy	N/A	N/A	SQL	Database
678	Valid Parenthesis String	Medium	O(n)	O(1)	C++,Java,Python	Greedy
704	Binary Search	Easy	O(log n)	O(1)	C++,Java,Python	Binary Search
1075	Project Employees I	Easy	N/A	N/A	SQL	Database
1179	Reformat Department Table	Easy	N/A	N/A	SQL	Database
1350	Students With Invalid Departments	Easy	N/A	N/A	SQL	Database
1378	Replace Employee ID With The Unique Identifier	Easy	N/A	N/A	SQL	Database
1407	Top Travellers	Easy	N/A	N/A	SQL	Database
1484	Group Sold Products By The Date	Easy	N/A	N/A	SQL	Database
1587	Bank Account Summary II	Easy	N/A	N/A	SQL	Database
1683	Invalid Tweets	Easy	N/A	N/A	SQL	Database
1693	Daily Leads and Partners	Easy	N/A	N/A	SQL	Database
1757	Recyclable and Low Fat Products	Easy	N/A	N/A	SQL	Database
1795	Rearrange Products Table	Easy	N/A	N/A	SQL	Database
1873	Calculate Special Bonus	Easy	N/A	N/A	SQL	Database