LeetCode_Solutions

Solutions of LeetCode interview questions

#	Title	Solution	Difficulty	Appeared in Interviews of
1	Two_Sum	Python C++	Medium	Airbnb , Facebook , Amazon , Microsoft , Apple , Yahoo , Dropbox , Bloomberg , Yelp , Adobe , LinkedIn
15	3Sum	Python	Medium	Facebook , Google , Amazon , Microsoft , Boomberg , Adobe
24	Swap Nodes in Pairs	C++ Python	Medium	Bloomberg , Microsoft , Uber
94	Binary Tree Inorder Traversal	C++	Medium	Microsoft
206	Reverse Linked List	C++ <Br> Python	Easy	Amazon , Apple , Adobe , Bolomberg , Facebook , Microsoft, Snapchat , Twitter , Uber , Yahoo , Yelp , Zenefit
217	Contains Duplicate	Python C++	Easy	Palantir , Airbnb , Yahoo
219	Contains Duplicate II	Python <Br> C++	Easy	Palantir , Airbnb , Yahoo
237	Delete Node in a Linked List	C++	Easy	Apple , Adobe , Microsoft
258	Add Digits	C++	Easy	Microsoft , Adobe
344	Reverse String	C++ <Br> Python	Easy	Not Appeared yet
724	Find Pivot Index	C++ Python	Easy	Not Appeared yet

#	Important codes you should know	Solution	Description
1	How to create Linked list nodes	C++ Python	Creating three nodes and printing them
2	Add a Node at the start	Python	Creating nodes and adding node at the start
3	How to delete Linked list nodes with the key	C++	With O(n) and O(1) runtime functions
4	Bubble Sort with Recursion	C++	With O(n)
5	Merge Sort with Recursion	C++	O(n log n)
6	Stack Basics	C++	Learn about LIFO

LeetCode_Solutions
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