LeetCode Solutions

This repo contains my solutions to LeetCode problems I have solved in Python.

In my solutions, I briefly explain the optimal approach (and any other approaches if applicable) and then code it up. Time and space complexities are also provided.

In the table below, you will find the original LeetCode problem and my solution to it.

Problems and Solutions

#	Title	Difficulty	Solution
1	Two Sum	Easy	Python
2	Add Two Numbers	Medium	Python
3	Longest Substring Without Repeating Characters	Medium	Python
4	Median of Two Sorted Arrays	Hard	Python
9	Palindrome Number	Easy	Python
11	Container With Most Water	Medium	Python
13	Roman to Integer	Easy	Python
14	Longest Common Prefix	Easy	Python
15	3Sum	Medium	Python
17	Letter Combinations of a Phone Number	Medium	Python
19	Remove Nth Node From End of List	Medium	Python
20	Valid Parentheses	Easy	Python
21	Merge Two Sorted Lists	Easy	Python
22	Generate Parentheses	Medium	Python